This function returns the coefficient of $D$ along the prime divisor associated to $P$.
i1 : R = QQ[x,y,u,v]/ideal(x*y-u*v); |
i2 : D = divisor(x) o2 = Div(v, x) + Div(u, x) o2 : WeilDivisor on R |
i3 : coefficient(ideal(x,u), D) o3 = 1 |
i4 : E = divisor(x*u) o4 = Div(v, x) + Div(u, y) + 2*Div(u, x) o4 : WeilDivisor on R |
i5 : coefficient(ideal(x,u), E) o5 = 2 |