Singular

D.14.2.10 from_boolean_poly

Usage:

from_boolean_poly(ps[, dir]); ps polynomial, dir integer zero or one

Return:

default: polynomial ps in the representation of the boolean ring

Note:

via the optional input dir, one can choose the computation method (either direct[dir==0] or recursive[dir==1]). default: direct

LIB "polybori.lib";
ring r=0,(x,y,z),Dp;
def rb=boolean_poly_ring(r);
poly f=x^2+2*y+5*z^4;
bpoly pp=f;
from_boolean_poly(pp);
==> x+z
from_boolean_poly(pp,1);
==> x+z
ring r2=5,(x,y,z),Dp;
def rb2=boolean_poly_ring(r2);
poly f2=x+y+z;
bpoly pp2=f2;
from_boolean_poly(pp);
==> x+z
from_boolean_poly(pp,1);
==> x+z