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D.2.4.13 rad_con

Procedure from library poly.lib (see poly_lib).

Usage:

rad_con(g,I); g polynomial, I ideal

Return:

1 (TRUE) (type int) if g is contained in the radical of I
0 (FALSE) (type int) otherwise

Example:

LIB "poly.lib";
ring R=0,(x,y,z),dp;
ideal I=x2+y2,z2;
poly f=x4+y4;
rad_con(f,I);
→ 0
ideal J=x2+y2,z2,x4+y4;
poly g=z;
rad_con(g,I);
→ 1

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            User manual for Singular version 2-0-4, October 2002, generated by texi2html.