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Please note that the recommended version of Scilab is 6.0.0. This page might be outdated.
See the recommended documentation of this function

Справка Scilab >> Polynomials > derivat

derivat

Rational matrix derivative

Calling Sequence

pd=derivat(p)

Arguments

p

polynomial or rational matrix

Description

The derivat() function works with expressions like which consists of functions of linear combinations with integer exponents of one variable (in the example denoted by z).

The function derivat() implements the analytical derivation of p(z), giving the following result.

Examples

s=poly(0,'s');
derivat(1/s)  // -1/s^2;
p1 = poly([1 -2 1], 'x', 'coeff')
derivat(p1)
p2 = poly([1 -4 2], 'y', 'coeff')
derivat(p2)
p3 = poly(ones(1, 10), 'z', 'coeff')
derivat(p3)
p4 = poly([-1 1], 't', 'roots')
derivat(p4)
s = %s; p5 = s^{-1} + 2 + 3*s
derivat(p5)
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Last updated:
Thu Oct 02 14:01:06 CEST 2014