D.7.1.8 linearpart
..................
Procedure from library presolve.lib (see presolve_lib).

Usage:
linearpart(id); id=ideal/module

Return:
generators of id of total degree <= 1

Example:
LIB "presolve.lib";
ring r=0,(x,y,z),dp;
ideal i=1+x+x2+x3,3,x+3y+5z;
linearpart(i);
==> _[1]=3
==> _[2]=x+3y+5z
module m=[x,y,z],x*[x3,y2,z],[1,x2,z3,0,1];
show(linearpart(m));
==> // module, 1 generator(s)
==> [x,y,z]

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&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; User manual for <a href="http://www.singular.uni-kl.de/"><i>Singular</i></a> version 2-0-4, October 2002,
generated by <a href="http://www.gnu.org/software/texinfo/"><i>texi2html</i></a>.
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