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Справка Scilab >> Polynomials > htrianr

htrianr

triangularization of polynomial matrix

Syntax

[Ar,U,rk]=htrianr(A)

Arguments

A

polynomial matrix

Ar

polynomial matrix

U

unimodular polynomial matrix

rk

integer, normal rank of A

Description

triangularization of polynomial matrix A.

A is [m,n] , m <= n.

Ar=A*U

Warning: there is an elimination of "small" terms (see function code).

Examples

x=poly(0,'x');
M=[x;x^2;2+x^3]*[1,x-2,x^4];
[Mu,U,rk]=htrianr(M)
det(U)
M*U(:,1:2)

See also

  • hrmt — gcd of polynomials
  • colcompr — column compression of polynomial matrix
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Last updated:
Tue Feb 14 15:13:23 CET 2017