Guillaume Cartier wrote:
the 2476979795053773/1125899906842624 result shows that Gambit does indeed smoke some powerfull stuff!
(...sorry, keyboard glitch.) PLT Scheme 4.1 reports exactly the same result. If you're looking for the answer 11/5, try (inexact->exact #e2.2) which overrides the automatic inexact-ness of a numerical constant containing a decimal point (R5RS 6.2.4). FWIW.
Ben