File: gcd.man

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.TH gcd 8 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an 
.SH NAME
gcd - gcd calculation
.SH CALLING SEQUENCE
.nf
[pgcd,U]=gcd(p)
.fi
.SH PARAMETERS
.TP
p
: polynomial row vector \fVp=[p1,..,pn]\fR
.SH DESCRIPTION
.Vb [pgcd,u]=gcd(p) 
computes the gcd  of components of \fVp\fR and a unimodular 
matrix (with polynomial inverse) \fVU\fR, with minimal degree such that
.LP
\fVp*U=[0 ... 0 pgcd]\fR
.SH EXAMPLE 
.nf
s=poly(0,'s');
p=[s,s*(s+1)^2,2*s^2+s^3];
[pgcd,u]=gcd(p);
p*u
.fi
.SH SEE ALSO
bezout, lcm, hermit