"Source: Text/LieTheory/RootSys.text";
"Line: 1340";
"Date: Tue Jun  7 22:27:15 2016";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/LieTheory/RootSys.text, line: 1340
// Example: H103E15 ()
print "Example: H103E15";
ei := GetEchoInput();
SetEchoInput(true);
R := RootSystem("A5");
a := AdditiveOrder(R);
Position(a, 2);
assert $1 eq 6;
Position(a, 3);
assert $1 eq 10;
Position(a, Sum(R, 2, 3));
assert $1 eq 7;
SetEchoInput(ei);
