Hi all, I have a strange problem with mzscheme. I start the interpreter and type: (expt 0 0) SCHEME SAYS "1" (OK!) (expt 0.0 0.0) SCHEME SAYS "1.0" (OK!) (expt 0.0 0) SCHEME SAYS "+inf.0" (???) (expt 0 0.0) SCHEME SAYS "1.0" Can someone explain me? Thanks. Giorgio Scorzelli