isConstant RingElement -- test whether something is constant

isConstant RingElement -- test whether something is constant

Synopsis:

Usage: t = isConstant f

Function: isConstant -- test whether something is constant

Input:

f, an instance of class RingElement.

Output:

t, an instance of class Boolean: whether the polynomial f is constant

Code:

     -- ../../../Macaulay2/m2/enginering.m2:701
     isConstant RingElement := r -> r == 0 or all(degree r, i -> i === 0)