scilab-branch-2026.0
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Scilab
Scilab keywords
backslash — (\) left matrix division: Exact or least square solution brackets [,;] — Concatenation. Recipients of an assignment. Results of a function colon (:) — Ranging operator. Addresses all elements along an array dimension or of a list. comma — (,) comma; instruction, argument separator comments — (// or /*...*/) comments comparison — comparison, relational operators dollar — ($) last index dot — (.) symbol equal — (=) assignment , comparison, equal sign getscilabkeywords — returns a list with all scilab
keywords. hat — (^) exponentiation less — (<) less than comparison minus — (-) subtraction operator. Sign change not — (~) logical not parentheses — ( ) left and right parenthesis percent — (%) special character plus (+) — Numerical addition. Text concatenation (gluing) quote — (') transpose operator, string delimiter semicolon — (;) ending expression and row separator slash — (/) right divisions. System's feed back. Comments star — (*) multiplication operator symbols — scilab operator names tilde — (~) logical not underscore _ — ignored output argument. gettext() alias Control flow
abort — interrupt evaluation. arguments — keyword to check function arguments. Arguments block must be the expression in the function. Arguments Validators — List of predefined validators that can be used in arguments block. break — keyword to interrupt loops case — keyword used in statement "select" continue — keyword to pass control to the next
iteration of a loop do — language keyword for loops else — keyword in if-then-else and select-case-then-else elseif — keyword in if-then-else end — end keyword for — keyword entering a non-conditional loop halt — stop execution if — keyword for conditional execution pause — temporarily pauses the running execution, and allows instructions in console. resume — return or resume execution and copy some local variables return — return or resume execution and copy some local variables select — select keyword then — keyword in control flows 'if' and 'select' try — beginning of try block in try-catch control
instruction while — Opens a block of instructions iterated on a heading condition Configuration
banner — shows Scilab banner getdebuginfo — get information about Scilab to debug getmemory — returns free and total system memory getmodules — lists modules installed in Scilab getos — return Operating System name and version getscilabmode — returns scilab mode getshell — returns current command interpreter getversion — get scilab and modules version information oldEmptyBehaviour — Controls the operation+ and operation- behaviour for Scilab recursionlimit — get or set the current or maximal allowed depth of nested calls sciargs — scilab command line arguments ver — Version information for Scilab with_javasci — Checks if Scilab has been built with
the Java interface with_macros_source — Checks if macros sources are installed with_module — Checks if a Scilab module is
installed Debugging
debug — enters the Scilab CLI debugger mode where — get current instruction calling tree whereami — display current instruction calling tree Error handling
errclear — clears the last error (if its number matches a given one) error — reports a run time error error_table — list of main standard errors messages lasterror — get last recorded error message warning — warning messages types
boolean — Scilab Objects, boolean variables and operators & | ~ Classdef and objects — Classdef and objects functions — Scilab procedures and Scilab objects hypermatrices — a Scilab object, N dimensional matrix in Scilab isa — checks variable type Lambda functions — Scilab procedures and Scilab objects library — library datatype matrices — Scilab objects, matrices in Scilab rational — rational fractions strings — Character strings type — returns the type of a Scilab object typename — associates a name to variable type typeof — explicit type or overloading code of an object Variables
Constants
SCI, WSCI — variable containing the value of the root path of Scilab. SCIHOME — contains the path to preferences, history files of your Scilab
session. TMPDIR — temporary directory path home — Gives the user directory. %chars — Selected sets of Unicode characters %e — Euler number. %eps — epsilon (floating-point relative accuracy) %f or %F — Boolean variable for false. %i, 1i, 1j — imaginary unit %inf — infinity %nan — not-a-number %pi — ratio of circle's circumference to its diameter %s — A variable used to define polynomials. %t or %T — Boolean variable for true. %z — A variable used to define polynomials. checkNamedArguments — Return list of unexpected named arguments clear — kills variables clearglobal — kills global variables enumeration — Get enumeration of a classdef or an object exists — checks variable existence global — Define global variable isdef — checks variable existence isglobal — checks if a local variable has a global counterpart methods — Get accessible methods of a classdef or an object names — Naming rules for variables and functions predef — variable protection properties — Get accessible properties of a classdef or an object who — listing of variables who_user — listing of user's variables whos — listing of variables in long form exit — Ends the current Scilab session quit — Terminates Scilab or decreases the pause level startup — startup files scilab — runs Scilab in interactive or batch mode with command line options. Differential Equations
Elementary Functions
Bitwise operations
bitand — bitwise logical AND between element-wise integers of 2 arrays bitcmp — bitwise complement of integers bitget — Extracts from integers bits of given indices bitor — bitwise logical OR between element-wise integers of 2 arrays bitset — Sets bits of given indices in some integers bitstring — A string giving the literal bit representation of a number bitxor — bitwise logical XOR between element-wise integers of 2 arrays Complex numbers
angle — argument of complex numbers, in radians complex — Build an array of complex numbers from their parts conj — Complex conjugate csgn — returns the sign of a vector of real of complex values imag — imaginary part of complex numbers, polynomials, or rationals imult — multiplication by i the imaginary unitary isreal — check if a variable is stored as a complex matrix real — real part of complex numbers, polynomials, or rationals Discrete mathematics
factor — factor function factorial — factorial function : product of the n first positive integers gcd — Greatest (positive) Common Divisor lcm — least common (positive) multiple of integers or of polynomials nchoosek — Computes binomial numbers (n,k) = numbers of combinations primes — lists of primes up to a given number rat — Floating point rational approximation Matrix generation
random
grand — Generate random numbers prbs_a — Generates a pseudo random binary sequence rand — Random numbers sample — Sampling: random draw with replacement samplef — sample values with replacement from a population
with given frequencies. samwr — Sampling without replacement blockdiag — Creates a block diagonal matrix from provided arrays. Block diagonal system connection. companion — companion matrix diag — diagonal including or extracting empty [] — empty matrix. Array ranges destructor. eye — identity matrix frank — Frank matrix gallery — generate test matrices hadamard — Hadamard matrix hankel — Hankel matrix hilbm — Hilbert matrix invhilb — Inverse of the Hilbert matrix linspace — generates linearly spaced numbers between 2 reached bounds logspace — logarithmically spaced vector magic — Magic square meshgrid — Create matrices or 3-D arrays from vectors replicated in 2 or 3 dimensions ndgrid — build matrices or N-D arrays by replicating some template vectors ones — matrix made of ones pascal — Pascal matrix perms — Generate the table of permutations of given elements repmat — Replicate and tile an array rosser — Rosser matrix squarewave — generates a square wave with period 2*%pi toeplitz — Toeplitz matrix (chosen constant diagonal bands) vander — Vandermonde matrix wilkinson — Wilkinson matrix zeros — null matrix Log - exp - power
exp — element-wise exponential expm — square matrix exponential log — natural logarithm log10 — base 10 logarithm log1p — computes with accuracy the natural logarithm of its argument
added by one log2 — Base-2 logarithm. Base-2 exponent and mantissa of some real numbers logm — square matrix logarithm nthroot — Real nth root of real numbers power — (^,.^) power operation sqrt — square root sqrtm — matrix square root Floating point
ceil — round up clean — cleans matrices (round to zero small entries) double — converts inttype integers or booleans into decimal encoding fix — round towards zero floor — round down format — set the default output format of decimal numbers ieee — sets or gets the floating point exception mode int — round towards zero isinf — tests for infinite elements isnan — check for "Not a Number" entries nearfloat — get previous or next floating-point number nextpow2 — next higher power of 2. number_properties — determine floating-point parameters round — round to nearest integer signed zero -0 — Processing of -0 versus 0 Radix conversions
base2dec — convert from base b to decimal bin2dec — convert from binary to decimal dec2base — Convert decimal to base N number in string dec2bin — convert from decimal to binary dec2hex — convert from decimal to hexadecimal dec2oct — convert from decimal to octal hex2dec — convert from hexadecimal to decimal oct2dec — convert from octal to decimal Integers
iconvert — conversion to 1 to 8 byte integer representation int8 — conversion to one byte integer representation inttype — type integers used in integer data types Matrix - shaping
Shape tests
iscolumn — check if a variable is a column ismatrix — checks if an object is a non-empty 1D or 2D matrix or array isrow — check if a variable is a row isscalar — check if a variable is a scalar. issquare — check if a variable is a square matrix isvector — check if a variable is a vector cat — stacks vectors matrices or arrays into an hypermatrix or hyperarray circshift — circularly shifts elements or subarrays of an array (regular, of structures, cells, custom) flipdim — reverses the order of (blocks of) rows, columns, pages.. of an array matrix — reshapes an array with the same number and order of components permute — permutes the dimensions of an array pertrans — Transposition with reference to the 2nd diagonal resize_matrix — trim or/and extend (and cast) a matrix or hypermatrix squeeze — removes singleton dimensions of a ND-array tril — lower triangular part of matrix triu — upper triangle Matrix operations
abs — absolute value, magnitude and — logical AND between the elements of a boolean or numerical array cross — vector cross product cumprod — cumulative product of array elements cumsum — partial cumulative sums of the elements of an array kron .*. — Kronecker tensorial product. Weighted array replication kron .\. ./. — Kronecker left and right divisions max — maximum min — minimum norm — norms of a vector or a matrix or — logical OR over the elements of a boolean or numerical array prod — product of array elements sign — signum function sum — sum of array elements Search and sort
dsearch — distribute, locate and count elements of a matrix or hypermatrix in given categories find — gives the indices of %T or non-zero elements gsort — sorts boolean, numerical and string arrays members — count (and locate) in an array each element or row or column of another array sortrows — Sort rows of a vector, matrix, table, or timeseries vectorfind — locates occurences of a (wildcarded) vector in a matrix or hypermatrix Set operations
intersect — elements or rows or columns met in both input arrays, without duplicates setdiff — returns elements that are in a set but not in another one. union — Set of all elements, rows, or columns of two arrays, without duplicates unique — extracts (and sorts) distinct elements, rows or columns of a matrix Trigonometry
Conversions
cart2pol — Convert cartesian coordinates to polar/cylindrical pol2cart — Convert polar/cylindrical coordinates to cartesian Matrix-wise processing
acoshm — matrix hyperbolic inverse cosine acosm — matrix wise cosine inverse asinhm — matrix hyperbolic inverse sine asinm — matrix wise sine inverse atanhm — matrix hyperbolic tangent inverse atanm — square matrix tangent inverse coshm — matrix hyperbolic cosine cosm — matrix cosine function cothm — matrix hyperbolic cotangent sinhm — matrix hyperbolic sine sinm — matrix sine function tanhm — matrix hyperbolic tangent tanm — matrix tangent acos — element wise cosine inverse (radians) acosd — element wise cosine inverse, result in degree. acosh — hyperbolic cosine inverse acot — computes the element-wise inverse cotangent of the
argument. acotd — computes the element-wise inverse cotangent of the argument,
result in degree. acoth — element wise hyperbolic cotangent inverse. acsc — computes the element-wise inverse cosecant of the
argument. acscd — computes the element-wise inverse cosecant of the argument,
results in degree. acsch — computes the element-wise inverse hyperbolic cosecant of the
argument. asec — computes the element-wise inverse secant of the
argument. asecd — computes the element-wise inverse secant of the argument,
results in degree. asech — computes the element-wise inverse hyperbolic secant of the
argument. asin — sine inverse (radians) asind — sine inverse, results in degree asinh — hyperbolic sine inverse atan — 2-quadrant and 4-quadrant inverse tangent atand — 2-quadrant and 4-quadrant element-wise inverse tangent, result
in degree atanh — hyperbolic tangent inverse cos — cosine function cosd — element-wise cosine function, argument in degree cosh — hyperbolic cosine cotd — element-wise cotangent function, argument in degree cotg — cotangent coth — hyperbolic cotangent csc — сomputes the element-wise cosecant of the
argument cscd — сomputes the element-wise cosecant of the argument given in
degree csch — Computes the element-wise hyperbolic cosecant of the
argument. sec — computes the element-wise secant of the argument secd — computes the element-wise secant of the argument given in
degree sech — computes the element-wise hyperbolic secant of the
argument sin — sine function sind — sine function, argument in degree. sinh — hyperbolic sine tan — tangent tand — tangent, argument in degree. tanh — hyperbolic tangent &, && — Binary AND between integers. Logical AND over/between booleans and numbers bernstein — compute the n-order Bernstein matrix extraction — matrix and list entry extraction ind2sub — linear index to matrix subscript values insertion — partial variable assignation
or modification isempty — check if a variable is an empty matrix or an empty
list isequal — tests the strict global equality between several objects, without equivalences modulo — remainder modulo m with the sign of the left operand, or of a polynomial division ndims — number of dimensions of an array |, || — Binary OR between integers. Logical OR over/between booleans and numbers size — size of objects sub2ind — matrix subscript values to linear index Linear Algebra
Eigenvalue and Singular Value
balanc — matrix or pencil balancing bdiag — block diagonalization, generalized eigenvectors eigs — calculates largest eigenvalues and eigenvectors of matrices pbig — eigen-projection projspec — spectral operators psmall — spectral projection spec — eigenvalues, and eigenvectors of a matrix or a pencil sva — singular value approximation svd — singular value decomposition Factorization
chol — Cholesky factorization fullrf — full rank factorization fullrfk — full rank factorization of A^k hess — Hessenberg form lu — LU factorization with pivoting polar — polar decomposition of a square matrix qr — QR decomposition rankqr — rank revealing QR factorization schur — [ordered] Schur decomposition of matrix and pencils sqroot — W*W' hermitian factorization Kernel
colcomp — column compression, kernel, nullspace im_inv — inverse image kernel — kernel, null space range — range (span) of A^k rowcomp — row compression, range Linear Equations
aff2ab — linear (affine) function to A,b conversion inv — matrix inverse linsolve — linear equation solver lsq — linear least square solution of A*X=B with minimal norm(X) pinv — pseudoinverse Markov Matrices
classmarkov — recurrent and transient classes of Markov matrix eigenmarkov — normalized left and right Markov eigenvectors genmarkov — generates random markov matrix with recurrent and transient classes Matrix Analysis
cond — condition number of a matrix det — determinant of a square matrix orth — orthogonal basis rank — rank rcond — inverse condition number rref — computes matrix row echelon form by lu transformations trace — trace Matrix Pencil
ereduc — computes matrix column echelon form by qz transformations fstair — computes pencil column echelon form by qz transformations glever — inverse of matrix pencil kroneck — Kronecker form of matrix pencil lyap — Lyapunov equation pen2ea — pencil to E,A conversion pencan — canonical form of matrix pencil penlaur — Laurent coefficients of matrix pencil quaskro — quasi-Kronecker form randpencil — random pencil rowshuff — shuffle algorithm State-Space Matrices
coff — resolvent (cofactor method) nlev — Leverrier's algorithm Subspaces
spaninter — subspace intersection spanplus — sum of subspaces spantwo — sum and intersection of subspaces givens — Givens transformation householder — Householder orthogonal reflexion matrix. Symetrical wrt a plane proj — projection Interpolation
bezier — compute the points for the bezier curve bsplin3val — 3d spline arbitrary derivative evaluation
function cshep2d — bidimensional cubic shepard (scattered)
interpolation eval_cshep2d — bidimensional cubic shepard interpolation
evaluation interp — cubic spline evaluation function interp1 — 1D interpolation in nearest, linear or spline mode interp2d — bicubic spline (2d) evaluation function interp3d — 3d spline evaluation function interpln — linear interpolation linear_interpn — n dimensional linear interpolation lsq_splin — weighted least squares cubic spline fitting mesh2d — Triangulation of n points in the plane smooth — smoothing by spline functions splin — cubic spline interpolation splin2d — bicubic spline gridded 2d interpolation splin3d — spline gridded 3d interpolation Control Systems - CACSD
Control Design
Control Loop
augment — augmented plant feedback — feedback operation lft — linear fractional transformation H-infinity
ccontrg — Central H-infinity continuous time controller dhinf — H_infinity design of discrete-time systems dhnorm — discrete H-infinity norm gamitg — H-infinity gamma iterations for continuous time systems h2norm — H2 norm of a continuous time proper dynamical system h_cl — closed loop matrix h_inf — Continuous time H-infinity (central) controller h_inf_st — static H_infinity problem h_norm — H-infinity norm hinf — H_infinity design of continuous-time systems linf — infinity norm linfn — infinity norm macglov — Continuous time dynamical systems Mac Farlane Glover problem nehari — Nehari approximant of continuous time dynamical systems parrot — Parrot's problem Linear Quadratic
fourplan — augmented plant to four plants gcare — Continuous time control Riccati equation gfare — Continuous time filter Riccati equation leqr — H-infinity LQ gain (full state) lqe — linear quadratic estimator (Kalman Filter) lqg — LQG compensator lqg2stan — LQG to standard problem lqg_ltr — LQG with loop transform recovery lqi — Linear quadratic integral compensator (full state) lqr — LQ compensator (full state) Pole Placement
kpure — continuous SISO system limit feedback gain krac2 — continuous SISO system limit feedback gain ppol — pole placement stabil — stabilization ddp — disturbance decoupling gfrancis — Francis equations for tracking Identification
arl2 — SISO model realization by L2 transfer approximation armax — armax identification armax1 — armax identification findABCD — discrete-time system subspace identification findAC — discrete-time system subspace identification findBD — initial state and system matrices B and D of a discrete-time system findBDK — Kalman gain and B D system matrices of a discrete-time system findR — Preprocessor for estimating the matrices of a linear time-invariant dynamical system findx0BD — Estimates state and B and D matrices of a discrete-time linear system imrep2ss — state-space realization of an impulse response inistate — Estimates the initial state of a discrete-time system lin — linearization sident — discrete-time state-space realization and Kalman gain sorder — computing the order of a discrete-time system time_id — SISO least square identification Linear Analysis
Controllability Observability
abinv — AB invariant subspace cainv — Dual of abinv cont_mat — controllability matrix contr — controllability, controllable subspace, staircase contrss — controllable part ctr_gram — controllability gramian dt_ility — detectability test obs_gram — observability gramian obscont — observer based controller observer — observer design obsv_mat — observability matrix obsvss — observable part ui_observer — unknown input observer unobs — unobservable subspace Frequency Domain
black — Black-Nichols diagram of a linear dynamical system bode — Bode plot bode_asymp — Bode plot asymptote calfrq — frequency response discretization dbphi — frequency response to phase and magnitude representation freq — frequency response freson — peak frequencies gainplot — magnitude plot hallchart — Draws a Hall chart nicholschart — Nichols chart nyquist — nyquist plot nyquistfrequencybounds — Computes the frequencies for which the nyquist locus enters and leaves a given rectangle. phasemag — phase and magnitude
computation phaseplot — frequency phase plot repfreq — frequency response svplot — singular-value sigma-plot trzeros — transmission zeros and normal rank Stability
bstap — hankel approximant dtsi — Continuous time dynamical systems stable anti-stable decomposition evans — Evans root locus g_margin — gain margin and associated crossover frequency p_margin — phase margin and associated crossover frequency plzr — pole-zero plot routh_t — Routh's table sgrid — draws a s-plane grid show_margins — display gain and phase margin and associated crossover frequencies st_ility — stabilizability test zgrid — zgrid plot Time Domain
arsimul — armax simulation csim — simulation (time response) of linear system damp — Natural frequencies and damping factors. dsimul — state space discrete time simulation flts — time response (discrete time, sampled system) ltitr — discrete time response (state space) narsimul — armax simulation (using rtitr) rtitr — discrete time response (transfer matrix) sensi — sensitivity functions Linear System Factorization
colinout — inner-outer factorization copfac — right coprime factorization of continuous time dynamical systems dcf — double coprime factorization fspec — spectral factorization of continuous time dynamical systems fspecg — stable factorization of continuous time dynamical systems fstabst — Youla's parametrization of continuous time linear dynamical systems gtild — tilde operation lcf — Continuous time dynamical systems normalized coprime factorization rowinout — inner-outer factorization specfact — spectral factor sysfact — system factorization Linear System Representation
abcd — state-space matrices arma — Scilab arma library arma2p — extract polynomial matrices from ar representation arma2ss — transform an armax data structure into state space
representation. armac — Scilab description of an armax process bloc2ss — block-diagram to state-space conversion cont_frm — transfer to controllable state-space des2ss — descriptor to state-space des2tf — descriptor to transfer function conversion frep2tf — transfer function realization from frequency response lsslist — Scilab linear state space function definition markp2ss — Markov parameters to state-space pfss — partial fraction decomposition pol2des — polynomial matrix to descriptor form sm2des — system matrix to descriptor sm2ss — system matrix to state-space ss2des — (polynomial) state-space to descriptor form ss2ss — state-space to state-space conversion, feedback,
injection ss2tf — conversion from state-space to transfer function ss2zp — SIMO state space system to zero pole gain representation ssprint — pretty print for linear system ssrand — random system generator sysconv — system conversion syslin — linear system definition syssize — size of state-space system systmat — system matrix tf2des — transfer function to descriptor tf2ss — transfer to state-space tf2zp — SIMO transfer function to zero pole gain representation trfmod — poles and zeros display zp2ss — Zero pole gain to state space zp2tf — Zero pole gain to transfer function zpk — Zero pole gain system representation zpk2ss — Zero pole gain to state space zpk2tf — Zero pole gain to transfer function Matrix Computation
linmeq — Sylvester and Lyapunov equations solver mucomp — mu (structured singular value) calculation ricc — Riccati equation riccati — Solves the matricial Riccati equation (continuous | discrete time domain) signm — matrix signum function sylv — Solve the Sylvester equations A*X + X*B = C or A*X*B + X = C Model Transformation
arhnk — Hankel norm approximant balreal — balanced realization bilin — general bilinear transform canon — canonical controllable form cls2dls — bilinear transform colregul — removing poles and zeros at infinity dscr — discretization of linear system equil — balancing of pair of symmetric matrices equil1 — balancing (nonnegative) pair of matrices hankelsv — Hankel singular values invsyslin — system inversion minreal — minimal balanced realization minss — minimal realization projsl — linear system projection rowregul — removing poles and zeros at infinity zeropen — zero pencil Polynomials
bezout — GCD of two polynomials or two integers, by the Bezout method chepol — Chebychev polynomials cmndred — common denominator form coeff — polynomial coefficients coffg — Co-factors of a matrix of polynomials or rationals colcompr — column compression of polynomial matrix degree — degree of polynomial matrix derivat — derivative of polynomials or of rationals determ — determinant of a matrix of polynomials detr — determinant of a matrix of rationals diophant — Solves the diophantine (Bezout) equation p1*x1 + p2*x2 = b factors — factorization in ℝ of a polynomial or a rational fraction hermit — Hermite form horner — evaluates some polynomials or rationals for given values hrmt — gcd of polynomials htrianr — triangularization of polynomial matrix inv_coeff — build a polynomial matrix from its coefficients invr — inverts a matrix of polynomials or of rationals lcmdiag — least common multiple diagonal factorization ldiv — polynomial matrix long division pdiv — polynomial division pol2str — polynomial to string conversion polfact — minimal real factors of a polynomial poly — Polynomial definition from given roots or coefficients, or characteristic to a square matrix. polyDisplay — set or get the display mode of polynomials polyint — Polynomial integration residu — residue roots — roots of a polynomial rowcompr — row compression of polynomial matrix sfact — discrete time spectral factorization simp — rational simplification simp_mode — toggle rational simplification sylm — Sylvester matrix of two polynomials varn — symbolic variable of a polynomial or a rational Signal Processing
Convolution - Correlation
conv — discrete 1-D convolution. conv2 — discrete 2-D convolution. convol — convolution convol2d — discrete 2-D convolution, using fft. corr — correlation, covariance hank — covariance to hankel matrix xcorr — Computes discrete auto or cross correlation Filters
How to design an elliptic filter — How to design an elliptic filter (analog and
digital) analpf — create analog low-pass filter buttmag — Power transmission of a Butterworth filter casc — cascade realization of filter from coefficients (utility function) cheb1mag — response of Chebyshev type 1 filter cheb2mag — response of type 2 Chebyshev filter ell1mag — magnitude of elliptic filter eqfir — minimax approximation of FIR filter eqiir — Design of iir filters faurre — filter computation by simple Faurre algorithm ffilt — coefficients of FIR low-pass filt_sinc — samples of sinc function filter — filters a data sequence using a digital filter find_freq — parameter compatibility for elliptic filter design frmag — magnitude of FIR and IIR filters fsfirlin — design of FIR, linear phase filters, frequency sampling technique group — group delay for digital filter hilbert — Discrete-time analytic signal computation of a real signal using Hilbert transform iir — iir digital filter iirgroup — group delay Lp IIR filter optimization iirlp — Lp IIR filter optimization kalm — Kalman update lev — Yule-Walker equations (Levinson's algorithm) levin — Toeplitz system solver by Levinson algorithm
(multidimensional) lindquist — Lindquist's algorithm remez — Remez exchange algorithm for the weighted chebyshev
approximation of a continuous function with a sum of cosines. remezb — Minimax approximation of magnitude response sgolay — Savitzky-Golay Filter Design sgolaydiff — Numerical derivatives computation using Savitzky-Golay filter. sgolayfilt — Filter signal using Savitzky-Golay Filter. srfaur — square-root algorithm srkf — square root Kalman filter sskf — steady-state Kalman filter syredi — Design of iir filters, syredi code interface system — observation update trans — low-pass to other filter transform wfir — linear-phase FIR filters wfir_gui — Graphical user interface that can be used to interactively design wfir filters wiener — Wiener estimate wigner — 'time-frequency' wigner spectrum window — compute symmetric window of various type yulewalk — least-square filter design zpbutt — Butterworth analog filter zpch1 — Chebyshev analog filter zpch2 — Chebyshev analog filter zpell — lowpass elliptic filter Identification
frfit — frequency response fit lattn — recursive solution of normal equations lattp — Identification of MA part of a vector ARMA process mrfit — frequency response fit phc — Markovian representation rpem — Recursive Prediction-Error Minimization estimation Spectral estimation
cepstrum — cepstrum calculation cspect — two sided cross-spectral estimate between 2 discrete time signals using
the correlation method czt — chirp z-transform algorithm mese — maximum entropy spectral estimation pspect — two sided cross-spectral estimate between 2 discrete time signals using
the Welch's average periodogram method. Transforms
dct — Discrete cosine transform. dst — Discrete sine transform. fft — Direct or inverse Fast Fourier Transform of a vector, matrix, or hypermatrix fft2 — two-dimension fast Fourier
transform fftshift — rearranges the fft output, moving the zero frequency to the center of the spectrum hilb — FIR approximation to a Hilbert transform filter ifftshift — inverse of fftshift bilt — bilinear or biquadratic transform SISO system given by a zero/poles representation detrend — remove constant, linear or piecewise linear trend from a vector intdec — Changes sampling rate of a signal unwrap — unwrap a Y(x) profile or a Z(x,y) surface. Unfold a Y(x) profile xcov — Computes discrete auto or cross covariance FFTW
Special Functions
airy — Airy functions of the first and second kind, and their derivatives amell — Jacobi's am function besseli — Modified Bessel functions of the first kind (Iα ). beta — beta function (Euler integral of the first kind) calerf — computes error functions. dawson — Compute the Dawson (scaled imaginary error) function. delip — complete and incomplete elliptic integral of first
kind dlgamma — derivative of gammaln function, psi function ellipj — Jacobi elliptic functions erf — The error function. erfc — The complementary error function. erfcx — scaled complementary error function. erfi — The imaginary error function. erfinv — inverse error function findm — for elliptic filter design gamma — gamma function, complete or incomplete normalized gammaln — The logarithm of gamma function. legendre — associated Legendre functions %k — Jacobi's complete elliptic integral of the first kind (vectorized) sinc — sinc function sincd — digital sinc function or Dirichlet kernel Statistics
Cumulated Distribution Functions
binomial — binomial distribution probabilities cdfbet — cumulative distribution function Beta distribution cdfbin — cumulative distribution function Binomial distribution cdfchi — cumulative distribution function chi-square distribution cdfchn — cumulative distribution function non-central chi-square distribution cdff — cumulative distribution function Fisher distribution cdffnc — cumulative distribution function non-central f-distribution cdfgam — cumulative distribution function gamma distribution cdfnbn — cumulative distribution function negative binomial distribution cdfnor — cumulative distribution function normal distribution cdfpoi — cumulative distribution function poisson distribution cdft — cumulative distribution function Student's T distribution cdftnc — cumulative distribution function of the non-central Student's T distribution Mean Central Tendency
center — center geomean — geometric mean harmean — harmonic mean : inverse of the inverses average (without zeros) mean — mean of all values, or means along a given dimension meanf — weighted mean of a vector or a matrix median — median (row median, column median,...) of
vector/matrix/array entries trimmean — trimmed mean of a vector or a matrix wcenter — center and weight Dispersion widths
iqr — interquartile range mad — mean absolute deviation stdev — standard deviation (row or column-wise) of vector/matrix entries stdevf — standard deviation strange — range variance — variance (and mean) of a vector or matrix (or hypermatrix) of real or complex numbers variancef — variance (and mean) of a vector or matrix of frequency-weighted real or complex numbers Empirical distribution
cmoment — central moments of all orders histc — computes the histogram of a simple series of data moment — non central moments of all orders perctl — computation of percentils quart — computation of quartiles tabul — frequency of values of a matrix or vector Multivariate Correl Regress PCA
correl — correlation of two variables cov — Sample covariance matrix covar — covariance of two variables pca — Computes principal component analysis for the data matrix X reglin — Linear regression show_pca — Visualization of principal components analysis results Data with Missing Values
nancumsum — This function returns
the cumulative sum of the values of a matrix nand2mean — difference of the means of
two independent samples nanmean — mean (ignoring Nan's) nanmeanf — mean (ignoring Nan's) with a given frequency. nanmedian — median of the values of a numerical vector or matrix nanreglin — Linear regression nanstdev — standard deviation (ignoring the NANs). nansum — Sum of values ignoring NAN's thrownan — Eliminates nan values Hypothesis Testing
ftest — Fisher ratio ftuneq — Fisher ratio for samples of unequal size. dbscan — Density-based clustering (DBSCAN) estimate_bandwidth — Estimate an appropriate bandwidth for Mean Shift clustering kmeans — K-means clustering meanshift — Mean Shift clustering algorithm polyfit — Polynomial curve fitting polyval — evaluates the polynomial for given values Sparse Matrix
UMFPACK Interface (sparse)
PlotSparse — plot the pattern of non nul elements of a sparse matrix ReadHBSparse — read a Harwell-Boeing sparse format file cond2sp — computes an approximation of the 2-norm condition number of a s.p.d. sparse matrix condestsp — estimate the condition number of a sparse matrix res_with_prec — computes the residual r = Ax-b with precision taucs_chdel — utility function used with taucs_chfact taucs_chfact — cholesky factorization of a sparse s.p.d. matrix taucs_chget — retrieve the Cholesky factorization at the scilab level taucs_chinfo — get information on Cholesky factors taucs_chsolve — solves a linear s.p.d. system A*X = B from Cholesky factors of the sparse A umf_ludel — utility function used with umf_lufact umf_lufact — lu factorization of a sparse matrix umf_luget — retrieve lu factors at the Scilab level umf_luinfo — get information on LU factors umf_lusolve — solve a linear sparse system given the LU factors umfpack — solve sparse linear system Optimization and Simulation
XML Management
XML Objects — Describe the properties of the different XML objects htmlDump — Dump a HTML document htmlRead — Read a HTML stream from a local or distant file htmlReadStr — Read a HTML tree from a string htmlWrite — Write a HTML document in a file xmlAddNs — Add a namespace to a XML Element xmlAppend — Append an element to the parent children xmlAsNumber — Convert the result of a XPath query into a row of numbers xmlAsText — Convert the result of a XPath query into a row of strings xmlDTD — Create a XML DTD object xmlDelete — Delete a XML document xmlDocument — Create a new XML document xmlDump — Dump a XML object xmlElement — Create a new XML element xmlFormat — Format a Scilab variable into XML xmlGetNsByHref — Get a namespace by its href xmlGetNsByPrefix — Get a namespace by prefix xmlGetOpenDocs — Get all open XML documents or all open XML Validation files. xmlGetValues — Parses and gets values of chosen tags attributes in a XML file xmlIsValidObject — Test the existence of a XML object xmlName — Retrieve the name of the elements. xmlNs — Create a new XML Namespace xmlRead — Read a XML stream from a local or distant file xmlReadStr — Read a XML tree from a string xmlRelaxNG — Create a XML Relax NG object xmlRemove — Remove an element or a list of elements from their parents xmlSchema — Create a XML Schema object xmlSetAttributes — Set the attributes name and value. xmlSetValues — Sets some attribute=value in an XML document for a given tag/XPath xmlValidate — Validate a document in using a DTD, a Relax NG or a Schema. xmlWrite — Write a XML document in a file xmlXPath — Make a XPath query on a XML document HDF5 files
h5is* tests
h5isArray — Check if the HDF5 object is an array h5isAttr — Check if the HDF5 object is an attribute h5isCompound — Check if the HDF5 object is a compound object h5isFile — Check if the HDF5 object is a file h5isGroup — Check if the HDF5 object is a group h5isRef — Check if the HDF5 object is a reference object h5isSet — Check if the HDF5 object is a dataset h5isSpace — Check if the HDF5 object is a dataspace h5isType — Check if the HDF5 object is a type h5isVlen — Check if the HDF5 object is a variable length array h5attr — Create an attribute h5close — Close a HDF5 object h5cp — Copy an object h5dataset — Create a dataset and write the data h5dump — Dump the content of an H5 object on the standard output stream h5exists — Test the existence of named object h5flush — Flush all the buffers associated with a file h5get — Get a named object h5group — Create a group h5label — Label a dataset h5ln — Link an object to another one h5ls — List the content of an HDF5 object (group or dataset) h5mount — Mount a file on a group h5mv — Move an object H5 Objects — Describe the properties of the different H5 objects h5open — Open an HDF5 file h5read — Read the data of HDF5 dataset h5readattr — Read the data of an HDF5 attribute h5rm — Remove elements from an HDF5 file h5umount — Unmount a previously mounted file. h5write — Create a dataset (if it does not exist) and write the data h5writeattr — Write an attribute in a group or a dataset Files : Input/Output functions
Directory
chdir — changes Scilab current directory createdir — makes new directory dir — gets file list isdir — checks that a path points to an existing directory ls — shows files mkdir — makes a new directory pwd — gets Scilab current directory removedir — removes a directory rmdir — removes a directory file_system
copyfile — copies a file deletefile — deletes a file fileinfo — provide information about some files of any type findfiles — finding all files with a given file specification isfile — checks whether argument is an existing file listfiles — list of files mdelete — deletes file(s) movefile — moves file or directory newest — returns newest file of a set of files Paths - Filenames
basename — strip directory and suffix from filenames fileext — returns extension for a file path fileparts — returns the path, filename and extension for a file path filesep — returns directory separator for current platform fullfile — builds a full filename from parts fullpath — creates an full path name for the specified relative path name. get_absolute_file_path — gives an absolute pathname of a file opened in Scilab getdrives — gets the drive letters of all mounted filesystems on the computer getlongpathname — gets long path name getrelativefilename — given absolute directories and absolute filenames, returns relative file names getshortpathname — gets short path name is_absolute_path — checks if argument is an absolute path pathconvert — converts a path to an OS path format. pathsep — provides the path separator used in the PATH environment variable of the current OS. tempname — creates a file with an unique filename compress — Compress files in an archive decompress — decompress files from an archive dispfiles — displays properties of opened files fprintfMat — writes a matrix in a file fscanfMat — reads a matrix from a text file getdeprecated — Get names of deprecated functions and replacement function names. getmd5 — get md5 checksum hash — get checksum of file or string using various digest algorithms %io — protected variable providing ids of the standard input and standard output listvarinfile — lists variables stored in a binary archive (names, types, sizes..) mclearerr — resets binary file access errors mclose — closes opened files meof — checks if end of file has been reached merror — tests the file access errors indicator mfprintf — converts, formats, and writes data to a file mfscanf — reads input from the stream pointer stream (interface to the C
fscanf function) mget — parses numbers in a binary file and returns them as decimals mgetl — reads lines from an text file mgetstr — reads a character string from a file mopen — opens files in Scilab mput — writes byte or word in a given binary format mputl — writes strings in a text file mputstr — write a single text in an open file mseek — sets current position in a binary file mtell — Returns the offset of the current byte relative to the beginning of a file save format — format of files produced by "save" scanf — converts formatted input on standard input scanf_conversion — mscanf, msscanf, mfscanf conversion specifications Input/Output functions
OS_commands
getenv — get the value of an environment variable getpid — get Scilab process identificator host — executes a Windows, Linux, or MacOS command scilab — run command or file in another Scilab setenv — set the value of an environment
variable unix_g — executes some Windows, Linux or MacOS instructions: output in variables
This function is obsolete. Please use host instead. unix_s — executes some Windows, Linux or MacOS instructions: output canceled (Silent mode)
This function is obsolete. Please use host instead. unix_w — executes some Windows, Linux or MacOS instructions: output in Scilab's console
This function is obsolete. Please use host instead. unix_x — executes some Windows, Linux or MacOS instructions: output in a dedicated window
This function is obsolete. Please use host instead. file — file management getio — get Scilab input/output logical units load — Loads some archived variables, a saved graphic figure, a library of functions read — matrices read save — Saves some chosen variables in a binary data file write — writes real numbers or strings in the console or in a formatted file Graphics
2d_plot
LineSpec — to quickly customize the lines appearance
in a plot Matplot — 2D plot of a matrix using colors Matplot1 — 2D plot of a matrix using colors Matplot properties — Description of the Matplot entities properties Sfgrayplot — smooth 2D plot of a surface defined by a function using colors Sgrayplot — smooth 2D plot of a surface using
colors champ — plots as arrows a field of 2D vectors champ properties — description of the 2D vector
field entity properties comet — 2D comet animated plot contour2d — level curves of a surface on a 2D
plot contour2di — compute level curves of a surface on a 2D plot contour2dm — compute level curves of a surface defined with a mesh contourf — filled level curves of a surface on a 2D plot cutaxes — plots curves or an existing axes along a discontinuous or multiscaled axis errbar — add vertical error bars on a 2D plot fchamp — direction field of a 2D first order ODE fec — pseudo-color plot of a function defined on a mesh fec properties — description of the fec entities
properties fgrayplot — 2D plot of a surface defined by a function using colors grayplot — 2D plot of a surface using
colors grayplot properties — description of the grayplot
entities properties graypolarplot — Polar 2D plot of a surface using
colors histplot — plot a histogram loglog — 2D logarithmic plot paramfplot2d — animated plot of a 2D parametrized curve. plot — 2D plot plot2d — 2D plot plot2d2 — 2D plot (step
function) plot2d3 — 2D plot (vertical
bars) plot2d4 — 2D plot (arrows style) plotimplicit — Plots the (x,y) lines solving an implicit equation or Function(x,y)=0 polarplot — Plot polar
coordinates scatter — 2D scatter plot semilogx — 2D semilogarithmic plot semilogy — 2D semilogarithmic plot stackedplot — plot multiple timeseries on time axis 3d_plot
bar3d — 3D bars plot comet3d — 3D comet animated plot contour — level curves on a 3D surface cylinder — Computes cylinder coordinates eval3dp — compute facets of a 3D parametric surface fplot3d — 3D plot of a surface defined by a
function fplot3d1 — 3D gray or color level plot of a surface
defined by a function genfac3d — Compute facets of a 3D surface geom3d — projection from 3D on 2D after a 3D
plot mesh — 3D mesh plot nf3d — Rectangular facets to plot3d parameters param3d — plots a single curve in a 3D cartesian frame param3d properties — description of the 3D curves
entities properties peaks — Computes values of a function with lots of local maxima and minima. plot3d — 3D plot of a surface plot3d1 — 3D gray or color level plot of a
surface plot3d2 — plot surface defined by rectangular
facets plot3d3 — mesh plot surface defined by rectangular
facets scatter3d — 3D scatter plot secto3d — 3D surfaces conversion sphere — Computes sphere coordinates surf — 3D surface plot surface properties — description of the 3D entities
properties annotation
Label entity properties — Properties of Axes labels and title legend — draw graph legend Legend entity properties — description of the Legend entity properties. legends — draw graph legend title — displays a title above a graphic axes, or updates its properties. xlabel — sets or updates the x-axis label or/and its properties xtitle — add titles on a graphics
window axes_operations
axes properties — description of the axes entity properties gca — Return handle of current axes. gda — Return handle of default
axes. isoview — tunes isometric rendering of graphical axes newaxes — Creates a new Axes entity replot — reframes with new boundaries the current or a given set of axes rotate_axes — Interactive rotation of an Axes handle. sca — set the current axes entity sda — reSets the Default Axes to its factory values subplot — grids the current figure or frame, and sets the current axes to a chosen cell unzoom — unzoom graphics xgrid — add a grid on a 2D or 3D plot xsetech — set the sub-window of a graphics window for plotting zoom_rect — zoom a selection of the current graphic figure axis
axis properties — description of the axis entity
properties drawaxis — draw an axis graduate — Pretty axis graduations xgraduate — axis graduation bar_histogram
bar — bar histogram barh — horizontal display of bar histogram barhomogenize — homogenize all the bars included in the current working axes Color management
Colormaps
colormap — set and/or get a figure/axes colormap. Using colormaps — Using colormaps in graphics. Predefined colormaps — Overview of predefined colormaps. addcolor — add new colors to the current colormap color — returns the color id of a color color_list — list of named colors colorbar — draws a vertical color bar getcolor — opens a dialog to show colors of the current or default colormap hsv2rgb — Converts HSV colors to RGB name2rgb — returns the RGB values of a named color rgb2name — returns the name of a color uigetcolor — Opens a dialog for selecting a color. Datatips
datatipCreate — Create a datatip on a polyline by program datatipGetEntities — Get all the entities compatible with datatips in the given axes. datatipManagerMode — Set or toggles the datatips mode. datatipMove — Move a specified datatip using the mouse. datatipRemove — Removes a selected datatip datatipRemoveAll — Removes all datatips on a set of polylines. datatipSetDisplay — Set the function used to compute the datatip string. datatipSetInterp — Set the interpolation mode for datatip. datatipSetOrientation — Set the position of the text box associated with the given tip. datatipSetStyle — Set the datatip style. datatip properties — description of the Datatip
entity properties datatips — Tool for placing and editing tips along the plotted curves figure_operations
anti_aliasing — Figure's property smoothing the stair-like aspect when rendering curves clf — Clears and resets a figure or a frame uicontrol colordef — Set the color look-and-feel of a given or of all forthcoming graphic figures drawlater — makes axes children
invisible. drawnow — draw hidden graphics
entities. figure properties — description of the graphics
figure entity properties gcf — Return handle of current graphic window. gdf — Return handle of default
figure. pixel_drawing_mode — Figure's property setting the RGBwise pixels update mode when drawing scf — set the current graphic figure
(window) sdf — reSets the properties of the Default Figure to their factory values show_window — raises a graphics window winsid — return the list of graphics windows geometric_shapes
arc properties — description of the Arc entity properties rectangle properties — description of the Rectangle
entity properties Segments properties — description of the Segments entity properties xarc — draw a part of an ellipse xarcs — draw parts of a set of ellipses xarrows — draw a set of arrows in 2D or in 3D. xfarc — Fill a part of an ellipse xfarcs — Fill parts of a set of ellipses xfrect — fill a rectangle xrect — draw a rectangle xrects — draw or fill a set of rectangles xsegs — draw unconnected segments handle
copy — copy a graphics entity. delete — delete a graphic entity and its children. gce — Get current entity handle. ged — Scilab Graphic Editor glue — glue a set of graphics entities into an Compound. is_handle_valid — Check whether a set of graphic handles is still valid. swap_handles — Permute two handles in the graphic
Hierarchy. unglue — unglue a compound object and replace it by individual children. interaction
dragrect — Drag rectangle(s) with mouse edit_curv — interactive modal (blocking) graphic curve editor event handler functions — Prototype of functions which may be used as event handler. locate — mouse selection of a set of points in a 2D axes rubberbox — rubberband box for rectangle selection seteventhandler — set an event handler for
the current graphic window twinkle — highlights one or more graphical objects by flashing them xclick — Wait for a mouse click or an event in a graphic window. xgetmouse — get the mouse events and current position lighting
light — creates a light object in the given axes light properties — Light overview lighting — Lighting overview load_save
xload — displays in a given window some graphical component loaded from a file. xsave — save graphics into a
file polygon
polyline properties — description of the Polyline
entity properties xfpoly — fill a polygon xfpolys — fill a set of polygons xpoly — draw a polyline or a
polygon xpolys — draw a set of polylines or polygons xrpoly — draw a regular polygon property
get — Gets the handle of a graphical or User Interface object, or the property's value of objects. set — set properties of some graphic objects or uimenus or uicontrol interactive components text
graphics fonts — description of fonts used in graphic figures Math rendering in Scilab graphics — Display mathematical equations in Scilab graphics through the
LaTeX or MathML languages. stringbox — Compute the bounding rectangle of a text
or a label. text properties — description of the Text entity properties titlepage — add a title in the middle of a graphics window xlfont — load a font in the graphic context or query loaded
font xnumb — draw numbers xstring — draw strings xstringb — draw strings into a box xstringl — compute a box which surrounds
strings transform
move — move, translate, a graphic entity and its children. orthProj — Computes the orthogonal projection of a point to a polyline in the plane. rotate — rotation of a set of points scaling — affine transformation of a set of points GlobalProperty — customizes the objects appearance (curves, surfaces...) in a plot or surf command Graphics: Getting started — graphics library overview Compound properties — description of the Compound entity properties Graphics Entities — description of the graphics entities data structures graphical editor — Interactive edition of hierarchical properties of graphic objects pie — draw a pie multiscaled plots — How to set several axes for one curve or for curves with distinct scales xchange — transform real to pixel coordinates Graphics export
driver — select a graphics driver xend — close a graphics export session xinit — open a graphics export session xs2bmp — export graphics to BMP xs2emf — export graphics to EMF. xs2eps — export graphics to EPS xs2gif — export graphics to GIF xs2jpg — export graphics to JPG xs2pdf — export graphics to PDF. xs2png — export graphics to PNG xs2ppm — export graphics to PPM xs2ps — export graphics to PS xs2svg — export graphics to SVG GUI
Data Structures
cells
cell — creates a cell array of empty matrices cell2mat — converts a cell array into a matrix iscell — checks if a variable is a cell array makecell — Creates a cell array. num2cell — converts an array into a cell array bool2s — convert boolean matrix to a zero one matrix. definedfields — returns an index of list's defined fields fieldnames — get a tlist, mlist or struct fields names getfield — list field extraction isfield — checks if the given fieldname exists in a structure or mlist or tlist isstruct — checks if a variable is a structure array list — a Scilab object and a list definition function list2vec — Concatenates list entries in a matrix. lstcat — list concatenation mlist — Scilab object, matrix oriented typed list
definition null — deletes a list component or a field of a structure, Mlist, or Tlist rlist — Scilab rational fraction function definition rmfield — Remove fields from a struct setfield — change the value of an element of a mlist, tlist or list struct — Builds a structure or an array of structures tlist — Scilab object and typed list definition. tree_show — Displays a tree view of a list, tlist, mlist, cell or structure array, Xcos block vec2list — Inverse function of list2vec. Parameters
add_param — Add a parameter to a list of parameters get_param — Get the value of a parameter in a parameter list init_param — Initialize the structure which will handles the parameters
list is_param — Check if a parameter is present in a parameter
list list_param — List all the parameters name in a list of
parameters remove_param — Remove a parameter and its associated value from a list of
parameters set_param — Set the value of a parameter in a parameter list Strings
ascii — string ASCII conversions blanks — create string of blank characters char — converts in a character array convstr — case conversion emptystr — zero length string evstr — evaluates Scilab expressions and concatenates their results grep — find matches of a string in a vector of strings isalphanum — check that characters of a string are alphanumerics isascii — Tests if every character of given strings is 7-bit US-ASCII isdigit — check that characters of a string are digits between 0 and 9 isletter — check that characters of a string are alphabetic letters isnum — tests if a string represents a number justify — Aligns the strings completed with spaces within each column, to the left, center or right length — Number of characters of a string. Number of elements of an array or list. part — Extraction of characters from strings prettyprint — Converts a Scilab object into some corresponding LaTeX, TeX, MathML or HTML strings regexp — in a string, locate (and extract) substrings matching a regular expression sci2exp — returns a string able to generate a given Scilab object strcat — concatenates character strings strchr — find the first occurrence of a character in a string strcmp — compare character strings strcspn — lengths from the beginning of strings until a character among those prohibited strindex — search position of a character string in another string string — conversion to character string stripblanks — strips / trims leading or trailing or both
blanks (and tabs) of strings strncpy — copy the N first characters of the given strings strrchr — find the last occurrence of a character in a string strrev — Reverses the order of characters in the given strings strsplit — split a single string at some given positions or patterns strspn — lengths of the beginning of strings as long as characters are among those allowed strstr — Tail of a string starting from the 1st occurrrence of a given fragment strsubst — substitute a character string by another in a character string strtod — parse and convert literal numbers STRings TO Decimal numbers strtok — split string into tokens tokenpos — returns the tokens positions in a character string tokens — Splits a string using separators and gives its chunks Sound file handling
analyze — frequency plot of a sound signal auread — load .au sound file auwrite — writes .au sound file beep — Produce a beep sound lin2mu — linear signal to mu-law encoding loadwave — load a sound wav file into scilab mapsound — Computes and displays an Amplitude(time, frequency) spectrogram of a sound record mu2lin — mu-law encoding to linear signal playsnd — command-line sound player facility savewave — save data into a sound wav file. wavread — reads sound data or querries data info from a .wav audio file wavwrite — writes .wav sound file Time and Date
caldays — create a calendarDuration in days calendar — Calendar of a given month and year (Gregorian dates) calendarDuration — create a calendarDuration - duration in days, months and years clock — Return the current Gregorian datetime and international time zone of the computer's clock date — Current date as date string datenum — Convert to serial date number datetime — create points in time datevec — Date components day — extracts day from datetime duration — create a duration - duration in hours, minutes and seconds eomday — Return last day of month etime — Elapsed time getdate — Current datetime or POSIX timestamp from computer's clock. Datetimes from given timestamps hms — extracts hour, minute and second of datetime or duration hours — convert reals in hours (duration) / convert hours (duration) in reals isnat — check if a variable contains "Not a Time" values month — extracts month from datetime NaT — Not a Time function used to create empty datetime now — Return current date under the form of a Unix hour (timestamp) realtimeinit — sets the time unit sleep — suspend all code executions (console, scripts, callbacks,..) tic — start a stopwatch timer timer — cpu time toc — Read the stopwatch timer weekday — Day's index and name in its week for given dates year — extracts year from datetime ymd — extracts year, month and day of datetime Output functions
disp — displays variables mprintf — converts, formats, and writes data to the main scilab window msprintf — converts, formats, and writes data in a string print — prints variables in a file printf_conversion — mprintf, msprintf, mfprintf C-format specifications Xcos
Spreadsheet
Console
ans — answer clc — Clear Command Window completion — returns files or variables names or reserved keywords starting as a given text console — Keyboard shortcuts predefined in the console window diary — diary of session input — prompts the user for keyboard input lines — sets and queries the display width and pagination for the console mode — sets or queries the mode echoing Scilab instructions in the console %onprompt — special custom function called after each line execution in console prompt — Get/Set current prompt tohome — Clears the command window by masking its former content above the top History manager
Matlab data files I/O
Code Matlab => Scilab
MEX Library API
Advanced functions
Built-in & external
clearfun — removes primitive external — Scilab Object, external function or routine funptr — coding of primitives ( wizard stuff ) intppty — set interface argument passing properties newfun — add a name in the table of functions what — list the Scilab
primitives Libraries
genlib — builds a library from a set of *.sci files defining functions in a given directory get_function_path — get source file path of a library function lib — loads a library of Scilab functions and variables, and sets its name librarieslist — gets the list of loaded Scilab libraries libraryinfo — gets the path and the set of primary functions of a loaded library argn — Returns the actual number of input/output arguments in a function call deff — in-line definition of a (anonymous) function in Scilab language exec — script file execution execstr — execute Scilab code in strings feval — multiple evaluation funcprot — switch scilab functions protection mode function — opens a function definition getd — Load all functions defined in a directory macr2tree — provides the internal code of a compiled Scilab function macro — Scilab procedure and Scilab object macrovar — variables of function overloading — display, functions and operators overloading
capabilities tree2code — generates the text definition of a Scilab function from its internal code varargin — variable number of arguments in an input argument list varargout — arbitrarily long list of output arguments whereis — Returns the name of the loaded library/module a given function belongs to Testing & benchmarking
Demo Tools
add_demo — Add an entry in the demos list demo_begin — begin a demonstration. This function is obsolete. Please use exec instead. demo_choose — create a dialog box for the choice of options. This function is obsolete. Please use x_choose instead. demo_compiler — test the presence of a compiler. This function is obsolete. Please use haveacompiler instead. demo_end — completes a demonstration. This function is obsolete. Please use exec instead. demo_file_choice — choose and executes an item within a list. This function is obsolete. Please use x_choose instead. demo_function_choice — choose and execute an item within a list. This function is obsolete. Please use x_choose instead. demo_run — script file execution. This function is obsolete. Please use exec instead. Dynamic/incremental Link
G_make — call make or nmake addinter — new functions interface dynamic link at run time. c_link — check if symbol loaded with dynamic link call — Fortran or C user routines call dllinfo — provides information about the format and symbols provided in
executable and DLL files (Windows). findmsifortcompiler — detects Intel fortran Compiler findmsvccompiler — detects Microsoft C Compiler getdynlibext — get the extension of dynamic libraries on your operating system. haveacompiler — detect if you have a C compiler. ilib_build — utility for shared library management ilib_build_jar — Build Java packages from sources into a JAR file ilib_compile — ilib_build utility: executes the Makefile produced by ilib_gen_Make ilib_for_link — utility for shared library management with link ilib_gen_Make — utility for ilib_build: produces a Makefile for building shared libraries ilib_gen_cleaner — utility for ilib_build: generates a cleaner file ilib_gen_gateway — utility for ilib_build, generates a gateway file. ilib_gen_loader — utility for ilib_build: generates a loader file ilib_include_flag — Return a formatted includes related string to pass to
system compiler ilib_mex_build — utility for mex library management ilib_verbose — set level of display used by dynamic link
functions. link — dynamic linker Supported and compatible compilers — supported and compatible compilers by Scilab ulink — unlink/unload a dynamically linked shared object Windows tools
consolebox — shows or hides the MS Windows terminal running the Scilab session createGUID — Creates a GUID (Windows only) dos — executes some DOS instructions (Windows only)
This function is obsolete. Please use host instead. findfileassociation — Searches for and retrieves a file association-related string from the registry (Windows only) getsystemmetrics — Retrieves the specified system metric or system configuration
setting (Windows only) istssession — Determines if scilab is launched from a ms terminal service session (Windows only) mcisendstring — sends a command string to an MCI
device (Windows only) powershell — executes a command with the Windows powershell interpreter (Windows only) win64 — Determine whether Windows x64 version of Scilab (Windows only) winopen — Open file in appropriate application
(Windows only) winqueryreg — Get item from Microsoft Windows
registry (Windows only) ATOMS
Tcl/Tk Interface
Script editor
edit — edits a given Scilab function or file edit_error — opens in scilab editor the source of the last recorded error editor — Call the text editor as defined in the preferences scinotes — Scinotes: Embedded Scilab text editor UI Data
Documentation system
utilities
add_help_chapter — Add an entry in the help list del_help_chapter — Delete an entry in the help list help_from_sci — Generate help files and demo files from the head comments section of a .sci source file. help_skeleton — build the skeleton of the xml help file associated to a Scilab
function Link toolbox help with Scilab one — How to make hyperlink in toolbox help pointing to Scilab's items Scilab documentation format — on line help XML file description format manedit — editing a manual item %helps — global variable: paths to help directories of loaded external modules xmltohtml — converts xml Scilab help files to HTML format xmltojar — converts xml Scilab help files to javaHelp format xmltopdf — converts xml Scilab help files to pdf format xmltops — converts xml Scilab help files to postscript format apropos — searches keywords in Scilab help doc — queries and displays help pages in the Scilab help browser head_comments — display Scilab function header comments Modules manager
Scilab MPI
MPI_Bcast — Broadcasts a message from the process with rank root to all other processes of the group MPI_Comm_rank — Determines the rank of a calling process in a communicator MPI_Comm_size — Determines the size of the group associated with a communicator MPI_Create_comm — Create a MPI subcommunicator of MPI_COMM_WORLD MPI_Finalize — Terminate the MPI environment MPI_Init — Initialize the MPI environment MPI_Irecv — Nonblocking reception of data from a node MPI_Isend — Nonblocking send data from a node to another MPI_Recv — Recv data from a node MPI_Send — Send data from a node to another MPI_Wait — Waits for an MPI request to complete MPI — Access to MPI features from Scilab MPI implementation — Technical details about the implementation Multilinguism
addlocalizationdomain — add a new domain in localization mechanism. getdefaultlanguage — returns the default language used by Scilab getlanguage — returns the current language used by Scilab. gettext — indexes or/and translates some indexed english messages setdefaultlanguage — sets the language of the session at startup and for some fixed Scilab menus setlanguage — chooses the language used for standard messages and help pages for the current session API Scilab
API Scilab — api_scilab is the Scilab 6 interface to access Scilab variables. Getting started with API_Scilab — How to load a C, C++ or fortran code in the Scilab engine as a new function API common functions — This page lists all the functions to get information about Scilab native objects. API double functions — This page lists all the functions to manipulate Scilab native objects containing doubles. API string functions — This page lists all the functions to manipulate Scilab native objects containing strings API boolean functions — This page lists all the functions to manipulate Scilab native objects containing booleans API integer functions — This page lists all the functions to manipulate Scilab native objects containing integers API list-type functions — This page lists all the functions to manipulate Scilab native lists. API polynomial functions — This page lists all the functions to manipulate Scilab native objects containing polynomials API pointer functions — This page lists all the functions to manipulate Scilab native objects containing pointers API cell functions — This page lists all the functions to manipulate Cell objects. API struct functions — This page lists all the functions to manipulate functions to manipulate Struct objects. API handle functions — This page lists all the functions to manipulate Scilab native objects containing graphic handles API optional functions — This page lists all the functions to get information about optional parameters. API types — This page lists all types used by API Scilab. call_scilab API (Scilab engine)
DisableInteractiveMode — Disables some features (plotting, gui creation, Tcl/Tk...) and
leaves only the computing engine ExecScilabCommand — Execute a Scilab from a C/C++ code (call_scilab) and can get message and callstack on error. GetLastJob — Returns the latest job sent to Scilab engine ScilabHaveAGraph — Check if any Scilab graphics have been opened. SendScilabJob — Send a Scilab task from a C/C++ code
(call_scilab) SendScilabJobs — Send Scilab tasks from a C/C++ code (call_scilab) StartScilab — Initializes and starts Scilab engine in Call
Scilab TerminateScilab — Stops and terminates Scilab engine in Call Scilab call_scilab — call_scilab is an interface which provides the ability to call
Scilab engine from C/C++ code Compile and run with Call Scilab — How to compile a native application based on or using
Scilab fromc — Checks if current Scilab is called from an external C program (by StartScilab). fromjava — Checks if current Scilab is called from javasci Java Virtual Machine (JVM)
Java from Scilab
Getting started - Beginning — How to use the Java Scilab binding? Getting started - Second step — How to use the Java Scilab binding? jallowClassReloading — Allow the class reloading jarray — Create a Java array jautoTranspose — Set the way to convert matrices jautoUnwrap — Unwrap automatically returned values jcast — Cast a Java object into another one. jcompile — Compile Java code or file jcreatejar — Creates a Java ARchive (JAR) from a set of files / directories jdeff — Map a static Java method onto a Scilab macro jdisableTrace — Stop the trace process. jenableTrace — Allow to trace the internal functionality of JIMS to help the debugging. jexists — Test if a Scilab Java Object is valid on the Java side jgetclassname — Return the class name of the given object jgetfield — Get the field value of a Java object jgetfields — Get all the fields of a Java object jgetinfo — Returns information about the Java virtual machine jgetmethods — Get all the methods of a Java object jimport — Import a Java class jinvoke — Invoke a method of a Java object jinvoke_db — Invoke a method of a Java object in using Java direct buffers jnewInstance — Creates a new instance of a Java class jnull — The Scilab version of the Java null object. jremove — Remove a Java Object on the Java side jsetfield — Set the field of a Java object junwrap — Convert a Java object into a Scilab native type junwraprem — Convert a Java object into a Scilab native type and remove it from the Java side jvoid — For no argument functions jwrap — Wrap a Scilab variable into a Java one if possible jwrapinchar — Wrap Scilab uint16 matrix into Java char multiarray. jwrapinfloat — Wrap Scilab double matrix into Java float multiarray. new — Creates a new instance of a Java class Java Interface
Preferences
Scilab code instrumentation
covMerge — Merges coverage results and exports to a file covStart — Instruments some macros to store runtime information on code coverage and
execution time covStop — Removes all instrumentation data covWrite — Exports runtime performance results to HTML and binary files profile — General information about instrumentation capabilities profileDisable — Remove instrumentation from a function, a library or remove all instrumentation profileEnable — Add instrumentation to a function, a library or all available functions profileGetInfo — Retrieve instrumentation information as a Scilab value Lint tool (SLint)
Web Tools