D.13.6.16 initialIdeal

Usage:

initialIdeal(i,w); i ideal, w intvec

Assume:

i is an ideal in Q[x_1,...,x_n] and w=(w_1,...,w_n)

Return:

ideal, the initialIdeal of i w.r.t. w

Note:

the initialIdeal consists of the terms with MAXIMAL weighted order w.r.t. w

LIB "tropical.lib";
ring r=0,(x,y),dp;
poly f=x3+y2-xy+x-1;
intvec w=2,3;
initialIdeal(f,w);
==> _[1]=x3+y2