"Source: Text/Geometry/ModAbVar.text";
"Line: 3576";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModAbVar.text, line: 3576
// Example: H148E61 ()
print "Example: H148E61";
ei := GetEchoInput();
SetEchoInput(true);
J := JZero(23);
phi := HeckeOperator(J,2);
psi := HeckeOperator(J,3);
Matrix(phi)*Matrix(psi);
phi*psi;
Inverse(phi);
1/3*phi;
2+phi;
phi+psi;
phi^4;
phi^(-4);
SetEchoInput(ei);
