"Source: Text/Geometry/RieSrf.text";
"Line: 817";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/RieSrf.text, line: 817
// Example: H127E10 ()
print "Example: H127E10";
ei := GetEchoInput();
SetEchoInput(true);
Qxy<x,y> := PolynomialRing(Rationals(),2);
X := RiemannSurface(y^2 + x^3 - 1);
Cycles, IntersectionMat, SymplecticTransform := HomologyBasis(X);
SymplecticTransform * IntersectionMat * Transpose(SymplecticTransform);
SetEchoInput(ei);
