invr(8)

NAME
invr - inversion of (rational) matrix

CALLING SEQUENCE
F = invr(H)

PARAMETERS

H   : polynomial or rational matrix

F   : polynomial or rational matrix

DESCRIPTION
If H is a polynomial or rational fonction matrix, invr computes H^(-1) using Leverrier's algorithm (see function code)

EXAMPLE
s=poly(0,'s')
H=[s,s*s+2;1-s,1+s]; invr(H)
[Num,den]=coffg(H);Num/den
H=[1/s,(s+1);1/(s+2),(s+3)/s];invr(H)

SEE ALSO
glever, coffg