"Source: Text/LieTheory/RootSys.text";
"Line: 1448";
"Date: Fri Sep 26 12:10:11 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/LieTheory/RootSys.text, line: 1448
// Example: H106E16 ()
print "Example: H106E16";
ei := GetEchoInput();
SetEchoInput(true);
R  := RootSystem("A1A1");
R1 := sub<R|[1]>;
R2 := sub<R|[2]>;
R1 + R2;
R1 join R2;
R1 := RootSystem("A3T2B4T3");
R2 := RootSystem("T3G2T4BC3");
R1 + R2;
R1 join R2;
SetEchoInput(ei);
