"Source: Text/LieTheory/RootSys.text";
"Line: 405";
"Date: Tue Jun  7 22:27:15 2016";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/LieTheory/RootSys.text, line: 405
// Example: H103E2 ()
print "Example: H103E2";
ei := GetEchoInput();
SetEchoInput(true);
M := SymmetricMatrix([1, 3,1, 2,3,1]);
RootSystem(M);
M := SymmetricMatrix([1, 3,1, 3,3,1]);
SetEchoInput(ei);
