The main use of the extra information is in computing the integral closure of principal ideals in
.
i1 : R=ZZ/3[u,v,x,y]/ideal(u*x^2-v*y^2);
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i2 : icFracP(R, Verbosity => 1)
Number of steps: 3, Conductor Element: x^2
u*x
o2 = {1, ---}
y
o2 : List
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i3 : S = ZZ/3[x,y,u,v];
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i4 : R = S/kernel map(S,S,{x-y,x+y^2,x*y,x^2});
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i5 : icFracP(R, Verbosity => 1)
Number of steps: 4, Conductor Element: x*u*v^2-x*v^3
u - v x + y - v
o5 = {-----, ---------, 1}
x x + 1
o5 : List
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