File: coff.man

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.TH coff 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
coff - resolvent (cofactor method)
.SH CALLING SEQUENCE
.nf
[N,d]=coff(M [,var]) 
.fi
.SH PARAMETERS
.TP
M
: square real matrix
.TP
var
: character string
.TP
N
: polynomial matrix (same size as \fVM\fR)
.TP
d
:
polynomial (characteristic polynomial \fVpoly(A,'s')\fR)
.SH DESCRIPTION
\fVcoff\fR computes R=\fV(s*eye()-M)^-1\fR for \fVM\fR a real matrix. 
R is given by \fVN/d\fR.
.LP
\fVN\fR = numerator polynomial matrix.
.LP
\fVd\fR = common denominator.
.LP
\fVvar\fR character string ('\fVs\fR' if omitted)
.SH EXAMPLE
.nf
M=[1,2;0,3];
[N,d]=coff(M)
N/d
inv(%s*eye()-M)
.fi
.SH SEE ALSO
coffg, ss2tf, nlev, poly