"Source: Text/Geometry/ModBrdt.text";
"Line: 623";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModBrdt.text, line: 623
// Example: H146E5 ()
print "Example: H146E5";
ei := GetEchoInput();
SetEchoInput(true);
M := BrandtModule(7,7);
E := EisensteinSubspace(M);
Basis(E);
S := CuspidalSubspace(M);
Basis(S);
PS<q> := LaurentSeriesRing(RationalField());
qExpansionBasis(S,100);                                                   
SetEchoInput(ei);
