"Source: Text/System/Func.text";
"Line: 1664";
"Date: Thu Sep 25 14:47:43 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/System/Func.text, line: 1664
// Example: H2E15 ()
print "Example: H2E15";
ei := GetEchoInput();
SetEchoInput(true);
// Add attribute field MyStuff for matrix groups.
AddAttribute(GrpMat, "MyStuff");
// Create group G.
G := GL(2, 3);
// Try illegal field.
// Try legal but unassigned field.
// Assign field and notice value.
G`MyStuff := [1, 2];
G`MyStuff;
SetEchoInput(ei);
