IsEvenPoly, IsOddPoly

IsEvenPoly, IsOddPoly -- test whether a polynomial is even or odd as a function

Syntax

IsEvenPoly(F: RINGELEM): BOOL
IsOddPoly(F: RINGELEM): BOOL

Description

These functions test whether a polynomial is even or odd (as a function). Of course, most polynomials are neither even nor odd.

Example

/**/  use QQ[x];
/**/  f := x^2+1;
/**/  IsEvenPoly(f);
true
/**/  IsOddPoly(x*f);
true
/**/  IsEvenPoly(f+x);
false