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7.7.21.0. polyVars
Procedure from librarydmodloc.lib (see dmodloc_lib).
- Usage:
- polyVars(f,v); f poly, v intvec
- Return:
- int, 1 if f contains only variables indexed by v, 0 otherwise
LIB "dmodloc.lib"; ring r = 0,(x,y,z),dp; poly f = y^2+zy; intvec v = 1,2; polyVars(f,v); // does f depend only on x,y? ==> 0 v = 2,3; polyVars(f,v); // does f depend only on y,z? ==> 1 |