sm2des

sm2des — system matrix to descriptor

Calling sequence

[Des]=sm2des(Sm);

`Sm`	: polynomial matrix (pencil system matrix)
`Des`	: descriptor system (`list('des',A,B,C,D,E)`)

Utility function: converts the system matrix:



 Sm = [-sE + A   B;
      [    C     D]

to descriptor system Des=list('des',A,B,C,D,E)).