some weeks ago there was a discussion about GAP4 in windows 95.
One of the curiosities was the caret ( ^) which could not be used.
I told then that in windows NT GAP4 runs without problems, especially with
But that was a bit too early, look the power with a.
gap> a:=5; 5 gap> 2^+; -153 But you can avoid the trouble using ( ) gap> 2^(a); 32