There's been a recent blog by John D. Cook about doing the same thing with SymPy, which is fairly nifty: http://www.johndcook.com/blog/2013/04/30/recognizing-n

There's been a recent blog by John D. Cook about doing the same thing with SymPy, which is fairly nifty: http://www.johndcook.com/blog/2013/04/30/recognizing-numbers/ http://www.johndcook.com/blog/2013/04/30/recognizing-numbers...