Commercial Macsyma also has this bug
:1 (Continue) Return from BREAK.
:2 (Abort) Macsyma Toplevel
Debug 1> ($ratsimp `((rat simp) 1 2))
((RAT) 1 2)
Debug 1>
Barton
maxima-admin@math.utexas.edu wrote on 03/10/2005 11:45:09 AM:
> ($ratsimp `((rat simp) 1 2)) => ((RAT) 1 2)
>
> This is clearly a bug. $ratsimp should be returning a simplified
> result. That said, in normal Maxima evaluation (meval), every