← Back to branch summary

~ubuntu-branches/ubuntu/hoary/scilab/hoary

« back to all changes in this revision

Viewing changes to man/polynomials/pol2des.cat

  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2005-01-09 22:58:21 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20050109225821-473xr8vhgugxxx5j
Tags: 3.0-12
http://bugs.debian.org/255869
changed configure.in to build scilab's own malloc.o, closes: #255869

Show diffs side-by-side

added added

removed removed

Lines of Context:
man/polynomials/pol2des.cat
1
 
pol2des           Scilab Group           Scilab Function            pol2des
2
 
NAME
3
 
   pol2des - polynomial matrix to descriptor form
4
 
  
5
 
CALLING SEQUENCE
6
 
 [N,B,C]=pol2des(Ds)
7
 
PARAMETERS
8
 
 Ds           : polynomial matrix
9
 
              
10
 
 N, B, C      : three real matrices
11
 
              
12
 
DESCRIPTION
13
 
   Given the polynomial matrix Ds=D_0 +D_1 s +D_2 s^2 +... +D_k s^k, pol2des
14
 
  returns three  matrices N, B, C, with N nilpotent  such that:
15
 
  
16
 
   Ds = C (s*N-eye())^-1 B 
17
 
  
18
 
EXAMPLE
19
 
 s=poly(0,'s');
20
 
 G=[1,s;1+s^2,3*s^3];[N,B,C]=pol2des(G);
21
 
 G1=clean(C*inv(s*N-eye())*B),G2=numer(G1)
22
 
SEE ALSO
23
 
   ss2des, tf2des
24
 
  
25
 
AUTHOR
26
 
   F.D. 
27