FUNCTION: LieTools/DimSLA
USAGE: DimSLA(Gt); DimSLA(Gtype,rnk);
SYNOPSIS: DimSLA(Gt) yields the dimension of a simple Lie Algebra Gt. 
  If its argument is a pair of the form Gtype,rnk, then it yield the 
  dimension of simple Lie algebra of that Cartan type.
EXAMPLE: 
> LieTools[DimSLA](E6);
                                  78

SEE ALSO: LieTools[DimRLA]
