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SpaceCurves :: Divisor - Divisor

Divisor - Divisor -- difference of two Divisors

Synopsis

Description

Returns the difference of two Divisors.
i1 : Q = quadricSurface(ZZ/101[x,y,z,w]);
i2 : C = divisor({1,0},Q);
i3 : D = divisor({0,1},Q);
i4 : C-D

o4 = {1, -1}

o4 : Divisor