"Source: Text/LieTheory/RootDtm.text";
"Line: 2540";
"Date: Fri Sep 26 12:10:11 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/LieTheory/RootDtm.text, line: 2540
// Example: H107E26 ()
print "Example: H107E26";
ei := GetEchoInput();
SetEchoInput(true);
R := RootDatum("A4");
PositiveRoots(R);
s := sub< R | [6,1,4] >;
s;
PositiveRoots(s);
s := sub< R | {1,5} >;
s;
PositiveRoots(s);
SetEchoInput(ei);
