resolvent (cofactor method)
[N,d]=coff(M [,var])
square real matrix
character string
polynomial matrix (same size as M
)
polynomial (characteristic polynomial poly(A,'s')
)
coff
computes R=(s*eye()-M)^-1
for M
a real matrix.
R is given by N/d
.
N
= numerator polynomial matrix.
d
= common denominator.
var
character string ('s
' if omitted)