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5.1.14 deg
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Syntax: deg (poly_expression)deg (vector_expression)deg (poly_expression,intvec_expression)deg (vector_expression,intvec_expression)-
Type: int
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Purpose: returns the maximal (weighted) degree of the terms of a polynomial or a vector;
deg(0) is -1.
The optional second argument gives the weight vector, the default weights of the base ring will be used otherwise.-
Example: ring r=0,(x,y,z),lp; deg(0); → -1 deg(x3+y4+xyz3); → 5 ring rr=7,(x,y),wp(2,3); poly f=x2+y3; deg(f); → 9 ring R=7,(x,y),ws(2,3); poly f=x2+y3; deg(f); → 9 vector v=[x2,y]; deg(v); → 4