Scilab Home page | Wiki | Bug tracker | Forge | Mailing list archives | ATOMS | File exchange
Please login or create an account
Change language to: English - Français - Português - 日本語

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 This page might be outdated.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 >> CACSD > pol2des

pol2des

polynomial matrix to descriptor form

Calling Sequence

[N,B,C]=pol2des(Ds)

Arguments

Ds

polynomial matrix

N, B, C

three real matrices

Description

Given the polynomial matrix Ds=D_0 +D_1 s +D_2 s^2 +... +D_k s^k, pol2des returns three matrices N, B, C, with N nilpotent such that:

Ds = C (s*N-eye())^-1 B

Examples

s=poly(0,'s');
G=[1,s;1+s^2,3*s^3];[N,B,C]=pol2des(G);
G1=clean(C*inv(s*N-eye())*B),G2=numer(G1)

See Also

  • ss2des — (polynomial) state-space to descriptor form
  • tf2des — transfer function to descriptor
Scilab Enterprises
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Thu Oct 02 14:01:06 CEST 2014