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D.15.12.47 gradiator

Procedure from library multigrading.lib (see multigrading_lib).

Purpose:
coarsens the grading of the basering until the polynom or ideal h becomes homogeneous.

Example:
 
LIB "multigrading.lib";
ring r = 0,(x,y,z),dp;
intmat g[2][3] = 1,0,1,0,1,1;
intmat l[2][1] = 3,0;
setBaseMultigrading(g,l);
getLattice();
==> 3,0
ideal i = -y5+x4,
y6+xz,
x2y;
gradiator(i);
==> 1
getLattice();
==> 3,4,2,
==> 0,-5,-5 
isHomogeneous(i);
==> 1


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