"Source: Text/Geometry/ModFrm.text";
"Line: 1102";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModFrm.text, line: 1102
// Example: H144E9 ()
print "Example: H144E9";
ei := GetEchoInput();
SetEchoInput(true);
M2 := ModularForms(Gamma0(11), 2);
f := M2.1;
g := M2.2;
f;
g;
f+g;
2*f;
MQ,phi := BaseExtend(M2, RationalField());
phi(2*f)/2;
f^2;
Parent($1);
M3 := ModularForms([DirichletGroup(11).1], 3); M3;
M3.1*f;
Parent($1);
SetEchoInput(ei);
