I downloaded Sage, and Sage uses it. I was getting into solving mathematical problems by setting them in the appropriate number system - like finding the perfec

I downloaded Sage, and Sage uses it. I was getting into solving mathematical problems by setting them in the appropriate number system - like finding the perfect data structure for a problem, so the answer drops out. Then realized Cython is a zillion times faster (took a while to learn how to get it to run at full speed) and now use that for everything.