next | previous | forward | backward | up | top | index | toc | Macaulay2 website
Divisor :: toQWeilDivisor

toQWeilDivisor -- create a Q-Weil divisor from a Weil divisor

Synopsis

Description

Turn a Weil divisor into a Q-divisor (or do nothing to a Q-divisor).

i1 : R = ZZ/5[x, y];
i2 : D = divisor(x);

o2 : WeilDivisor on R
i3 : E = toQWeilDivisor(D)

o3 = Div(x)

o3 : QWeilDivisor on R
i4 : toQWeilDivisor(E)

o4 = Div(x)

o4 : QWeilDivisor on R
i5 : F = divisor({3, 0, -2}, {ideal(x), ideal(y), ideal(x+y)})

o5 = -2*Div(x+y) + 3*Div(x) + 0*Div(y)

o5 : WeilDivisor on R

See also

Ways to use toQWeilDivisor :

For the programmer

The object toQWeilDivisor is a method function.