coefficients of matrix polynomial
[C]=coeff(Mp [,v])
polynomial matrix
integer (row or column) vector of selected degrees
big matrix of the coefficients
C=coeff(Mp)
returns in a big matrix C the coefficients of the
polynomial matrix Mp . C is partitioned
as C=[C0,C1,...,Ck]
where the Ci are arranged in increasing order
k = max(degree(Mp))
C=coeff(Mp,v) returns the matrix of coefficients with
degree in v . (v is a row or column vector).