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D.2.2.21 timeFactorize

Procedure from library general.lib (see general_lib).

Usage:

timeFactorize(p,d) poly p , integer d

Return:

factorize(p) if the factorization finished after d-1
seconds otherwise f is considered to be irreducible

Example:

 
LIB "general.lib";
ring r=0,(x,y),dp;
poly p=((x2+y3)^2+xy6)*((x3+y2)^2+x10y);
p=p^2;
list l=timeFactorize(p,2);
l;
→ [1]:
→    [1]:
→       1
→    [2]:
→       x22y14+2x21y14+4x23y11+x20y14+2x25y8+4x22y11+6x24y8+4x26y5+2x18y13+\
   x28y2+4x17y13+4x15y15+8x19y10+2x16y13+8x14y15+2x12y17+4x21y7+8x18y10+16x1\
   6y12+4x13y15+4x11y17+12x20y7+8x18y9+16x15y12+8x13y14+2x10y17+8x22y4+24x17\
   y9+4x15y11+x14y12+8x12y14+2x24y+16x19y6+12x14y11+2x13y12+4x11y14+4x21y3+8\
   x16y8+4x15y9+x12y12+8x10y14+6x8y16+2x18y5+2x17y6+4x14y9+16x12y11+4x9y14+1\
   2x7y16+4x5y18+6x16y6+8x14y8+16x11y11+24x9y13+6x6y16+8x4y18+x2y20+4x18y3+2\
   4x13y8+12x11y10+24x8y13+16x6y15+4x3y18+2xy20+x20+16x15y5+36x10y10+8x8y12+\
   16x5y15+4x3y17+y20+4x17y2+24x12y7+24x7y12+2x5y14+4x2y17+6x14y4+16x9y9+6x4\
   y14+4x11y6+4x6y11+x8y8
→ [2]:
→    1,1
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