"Source: Text/Geometry/ModSym.text";
"Line: 494";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModSym.text, line: 494
// Example: H145E3 ()
print "Example: H145E3";
ei := GetEchoInput();
SetEchoInput(true);
Del := ModularSymbols("1k12A"); Del;
qEigenform(Del,5);
M := ModularSymbols("11k4A"); M;
AmbientSpace(M);
qEigenform(M,5);
Parent($1);
M := ModularSymbols("37k4",+1); M;
AmbientSpace(M);
Factorization(CharacteristicPolynomial(HeckeOperator(M,2)));
SetEchoInput(ei);
