Scilab 6.0.2
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
companion
companion matrix
Syntax
A=companion(p)
Arguments
- p
polynomial or vector of polynomials
- A
square matrix
Description
Returns a matrix A
with characteristic polynomial equal
to p
if p
is monic. If p
is not monic
the characteristic polynomial of A
is equal to
p/c
where c
is the coefficient of largest degree
in p
.
If p
is a vector of monic polynomials, A
is block diagonal,
and the characteristic polynomial of the ith block is p(i)
.
Examples
See also
- spec — eigenvalues of matrices and pencils
- poly — Polynomial definition from given roots or coefficients, or characteristic to a square matrix.
- randpencil — random pencil
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