Interpreting math expressions is one of those things that seems simple until you get into it. The first problem is correctly lexing the input — a term that means splitting into tokens.

The solution he came up with is to use the Python interpreter as a binary math aide. We knew that you could use Python to convert between decimal, hexadecimal, and binary.

Interested in learning Python but don't know where to start? I'll walk you through the basics of the ever-popular programming language step-by-step. In an hour or so, you'll go from zero to ...