dcf

dcf — double coprime factorization

Calling sequence

[N,M,X,Y,NT,MT,XT,YT]=dcf(G,[polf,polc,[tol]])

`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

returns eight stable systems (N,M,X,Y,NT,MT,XT,YT) for the doubly coprime factorization

G must be stabilizable and detectable.