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Divisor :: isZeroDivisor

isZeroDivisor -- whether the divisor is the zero divisor

Synopsis

Description

This function returns true if the divisor is zero, otherwise it returns false.

i1 : R = QQ[x, y, z];
i2 : D = divisor({1, 2, -3, 4}, {ideal(x), ideal(y), ideal(z), ideal(y)});

o2 : WeilDivisor on R
i3 : isZeroDivisor( D )

o3 = false
i4 : R = QQ[x, y, z];
i5 : E = divisor({1, 2, -3, 4, 5, -9, 13, 2, -15}, {ideal(x), ideal(x), ideal(x), ideal(y), ideal(y), ideal(y), ideal(z), ideal(z), ideal(z)});

o5 : WeilDivisor on R
i6 : isZeroDivisor( E )

o6 = true

Ways to use isZeroDivisor :

For the programmer

The object isZeroDivisor is a method function.