"Source: Text/Geometry/ModAbVar.text";
"Line: 3685";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModAbVar.text, line: 3685
// Example: H148E62 ()
print "Example: H148E62";
ei := GetEchoInput();
SetEchoInput(true);
J := JZero(66);
phi := HeckeOperator(J,2);
R<x> := PolynomialRing(RationalField());
CharacteristicPolynomial(phi);
CharacteristicPolynomial(Matrix(phi));
FactoredCharacteristicPolynomial(phi);
MinimalPolynomial(phi);
Factorization(MinimalPolynomial(phi));
SetEchoInput(ei);
