copfac(1)

NAME
copfac - right coprime factorization

CALLING SEQUENCE
[N,M,XT,YT]=copfac(G [,polf,polc,tol])

PARAMETERS

G   : syslin list (continuous-time linear system )

polf, polc
    : respectively the poles of XT and YT and the poles of n and M (default values =-1).

tol : real threshold for detecting stable poles (default value 100*%eps)

N,M,XT,YT
    : linear systems represented by syslin lists

DESCRIPTION
returns a right coprime factorization of G.

G = N*M^-1 where N and M are stable, proper and right coprime.
(i.e. [N M] left-invertible with stability)

XT and YT satisfy:

[XT -YT].[M N]' = eye (Bezout identity)

G is assumed stabilizable and detectable.

SEE ALSO
syslin, lcf