Welcome to Scilab 2025.1.0

Scilab 2025.1.0 is a new stable release of Scilab, the open-source platform for numerical computation.

Here is a tour of the changes since Scilab 2024.1.0.

To view it in the documentation browser, enter doc("2025.1.0") in the console, and browse related pages.

Feature changes and additions

• New functions:
  • getdeprecated: Gets names of deprecated functions and replacement function names.
  • kmeans: K-means clustering function.
  • polyfit: Fits a curve with a polynomial.
  • polyval: Evaluates a polynomial for some given values.
  • addvars: Add variables to table or timeseries.
  • combinations: Create a table containing all elements combinations.
  • join: Combine two tables or timeseries.
  • removevars: Remove variables from table or timeseries.
  • diffxy: Derivative of y with respect to x.
  • frank: Computes Frank matrix.
  • hadamard: Hadamard matrix.
  • hankel: Hankel matrix.
  • hilbm: Computes Hilbert matrix.
  • invhilb: Computes inverse of Hilbert matrix.
  • magic: Computes magic square matrix.
  • pascal: Pascal matrix.
  • rosser: Rosser matrix.
  • vander: Computes Vandermonde matrix.
  • wilkinson: Wilkinson matrix.
  • day: Extract day from datetime.
  • month: Extract month from datetime.
  • cart2pol: Convert cartesian coordinates to polar/cylindrical.
  • pol2cart: Convert polar/cylindrical coordinates to cartesian.
  • cylinder: Compute cylinder coordinates.
  • peaks: Compute values of a function with lots of local maxima and minima.
  • sphere: Compute sphere coordinates.
  • rmfield: Remove fields from a struct.
  • tbx_package: Package a toolbox source tree with binaries into a single file.
• Features improvements:
  • New helpers for arguments (mustBeScalar, mustBeScalarOrEmpty, mustBeEqualDimsOrEmpty, mustBeRow, mustBeColumn) are been added.
  • mustBeA helper can now manage "empty" type (for empty matrix cases).
  • Some Scilab modules (CACSD, Linear Algebra, Time ...) have been updated to use the `arguments` block hence enhancing their performances.
  • pca() function now manages more input/output arguments.
  • writetable() and writetimeseries() have been optimized.
  • addcolor() performances have been improved mainly for huge colormaps.
  • toJSON() and fromJSON() are now based on RapidJSON for efficiency and can manage %Nan, -%Inf and %Inf values.
  • Option names are no more case-sensitive in pca(), datetime(), ...
  • polyfit() now manages weights for y data.
  • host() can now return both standard output and standard error.
• Language changes:
  • Anonymous/Lambda functions are now available in Scilab using a dedicated syntax #(x) -> (x+1).
  • New simplified syntax to declare complex numbers: 1i and 1j (equivalent to 1*%i).
• Web Tools:
  • timeout optional parameter has been added to http_* functions.
  • http_upload can be used to upload a remote file with a different name as local one.
• Graphics & GUI:
  • New property "TooltipString" added for uimenu handles.
  • New properties "cdata_bounds" & "color_range" added for Fac3d handles.
  • "anti_aliasing" property value is now "8x" by default for graphic figures (Anti-aliasing was deactivated by default in previous versions).
  • "fractional_font" property value is now "on" by default for text handles (is was "off" by default in previous versions).
  • Graphics functions now return the handles they created: h = plot(), h = surf(), ... This feature can be used to replace h = gce() in some cases.
  • New way to manage rendering (raw text, LaTeX, MathML) of strings in graphics figures with:
    • "interpreter" property added for Text, Datatip, Label and Legend handles,
    • "tics_interpreters" property added for Axis handles,
    • "interpreters" property added for x_ticks, y_ticks and z_ticks for Axes handles.
  • New "browser" style uicontrol based on JCEF (See dedicated post on Discourse).
  • New discrete/qualitative colormaps: flag, prism, Accent, Dark2, Paired, Pastel1, Pastel2, Set1, Set2 and Set3.
  • New turbo colormap: varying from blue, lightblue, green, yellow, orange then red (quite similar to jet but perceptually uniform).
• Xcos:
  • SSP (System Structure and Parametrization) format support preview: Xcos can now load & save SSP files (hence providing better interoperability with other simulation tools).

In this version, extra effort has been expanded on fixing issues and stabilization. Detailed information about those improvements can be found in the CHANGES file.

Documentation and help

If you are new to Scilab, please use the Scilab beginners tutorial and Xcos beginners tutorial provided by the Scilab Team.

The Scilab Team provides also some documentation and tutorials.

Other resources

Scilab Website - Consult Scilab official website

Wiki - Consult documentations, tricks, etc.

Issues - Report bugs and wishes about Scilab

Forge - Browse and publish Scilab modules

Discourse - Communicate and exchange with the community

ATOMS - Browse Scilab packaged modules

File Exchange - Exchange your scripts, results and files.