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D.14.2.5 direct_boolean_poly
Procedure from library polybori.lib (see polybori_lib).
- Usage:
- boolean_poly(ps[, rb]); ps polynomial, rb boolean ring
- Return:
- default: polynomial ps in the representation of the boolean ring
rb==boolean_poly_ring(basering); optional input: boolean ring rb
Example:
| | LIB "polybori.lib";
==> // ** args must be 1 in system("install", "bideal", "ideal", bid\
eal2ideal, 4);
ring r0=2,x(1..4),lp;
bring rb=r0;
poly f=x(1)^2+2*x(2)*(x(3))-x(4)^3;
direct_boolean_poly(f);
==> x(1) + x(4)
direct_boolean_poly(f,rb);
==> x(1) + x(4)
ring r1=0,x,Dp;
poly f=x3+2x+1;
direct_boolean_poly(f);
==> x + 1
ring r2=32003,(x,y,z),Dp;
poly f=xyz+20*x^2*y-3*xz+15;
direct_boolean_poly(f);
==> x*y*z + x*z + 1
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See also:
boolean_ideal;
boolean_std.
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