dcf(1)

NAME
dcf - double coprime factorization

CALLING SEQUENCE
[N,M,X,Y,NT,MT,XT,YT]=dcf(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,NT,MT,X,Y
    : linear systems represented by syslin lists

DESCRIPTION
returns eight stable systems (N,M,X,Y,NT,MT,XT,YT) for the doubly coprime factorization
                 !XT  -YT! ! M  Y !
                 !       !*!      ! = eye
                 !-NT  MT! ! N  X !
G must be stabilizable and detectable.

SEE ALSO
copfac