File: coffg.cat

package info (click to toggle)
scilab 2.4-1
  • links: PTS
  • area: non-free
  • in suites: potato, slink
  • size: 55,196 kB
  • ctags: 38,019
  • sloc: ansic: 231,970; fortran: 148,976; tcl: 7,099; makefile: 4,585; sh: 2,978; csh: 154; cpp: 101; asm: 39; sed: 5
file content (32 lines) | stat: -rw-r--r-- 602 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 

coffg(8)                       Scilab Function                       coffg(8)
NAME
  coffg - inverse of polynomial matrix

CALLING SEQUENCE
  [Ns,d]=coffg(Fs)

PARAMETERS

  Fs   : square polynomial matrix

DESCRIPTION
  coffg computes Fs^-1 where Fs is a polynomial matrix by co-factors method.

  Fs inverse = Ns/d

  d = common denominator; Ns =  numerator (a polynomial matrix)

  (For large matrices,be patient...results are generally reliable)

EXAMPLE
  s=poly(0,'s')
  a=[ s, s^2+1; s  s^2-1];
  [a1,d]=coffg(a);
  (a1/d)-inv(a)

SEE ALSO
  determ, detr, invr, penlaur, glever

AUTHOR
  F. D.