A common joke among Python programmers is that the interactive mode works great as a desk calculator. Here are the reasons this is close to reality. If you use a handheld calculator, you may have ...

In the following example, we loop through a list of numbers, and use the variable digit to hold each number in turn: Strings in Python are considered “sequences” — they can be iterated over ...

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. For graphing ...