next | previous | forward | backward | up | top | index | toc | Macaulay2 web site
Divisor :: BasicDiv - BasicDiv

BasicDiv - BasicDiv -- Subtract two divisors.

Synopsis

Description

Subtract two divisors.

i1 : R = ZZ/11[x, y]

o1 = R

o1 : PolynomialRing
i2 : D1 = divisor({3.4, -5.6}, {ideal(x), ideal(y)}, CoeffType => RR)

o2 = 3.4*Div(x) + -5.6*Div(y) of R

o2 : RDiv
i3 : D2 = divisor({3/4, -8/5}, {ideal(y), ideal(x)}, CoeffType => QQ)

o3 = 3/4*Div(y) + -8/5*Div(x) of R

o3 : QDiv
i4 : D1 - D2

o4 = -6.35*Div(y) + 5*Div(x) of R

o4 : RDiv