"Source: Text/LieTheory/RootDtm.text";
"Line: 626";
"Date: Fri Sep 26 12:10:11 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/LieTheory/RootDtm.text, line: 626
// Example: H107E3 ()
print "Example: H107E3";
ei := GetEchoInput();
SetEchoInput(true);
A := Matrix(2,3, [1,-1,0, -1,1,-1]);
B := Matrix(2,3, [1,-1,1, 0,1,-1]);
RootDatum(A, B);
C := CoxeterMatrix("B2B2");
RootDatum(C);
RootDatum(C : Nonreduced:={2});
RootDatum(C : Nonreduced:={4});
RootDatum(C : Nonreduced:={2,4});
SetEchoInput(ei);
