An alternative to using NumPy is SymPy, a computer algebra library for Python. SymPy operates on symbols the way a numeric calculator or regular Python program works on numbers.

While Python is great for simple math, it is capable of a lot more with the right libraries. The built-in math library will turn Python into a scientific calculator.

This is a complete tutorial, discussing how to build a simple calculator app for Android. Check it out, and implement some of the recommended improvements.

Learn the eight powerful Python web frameworks you can use to develop APIs now.