"Source: Text/LieTheory/RootDtm.text";
"Line: 2728";
"Date: Fri Sep 26 12:10:11 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/LieTheory/RootDtm.text, line: 2728
// Example: H107E29 ()
print "Example: H107E29";
ei := GetEchoInput();
SetEchoInput(true);
R1 := RootDatum("A5");
R2 := RootDatum("B4");
R := DirectSum(R1, Dual(R2));
DirectSumDecomposition(R);
R := RootDatum("BC2");
I := IndivisibleSubdatum(R); I;
I subset R;
R := StandardRootDatum("A", 3);   
Radical(R);
SetEchoInput(ei);
