Python uses zero-based array indexing. In most languages, Python and C included, the first element of an array is accessed with a zero—e.g., string[0] in Python for the first character in a string.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

M icrosoft just announced new feature for Python in Excel that lets you analyze images in your spreadsheets. You no longer need outside tools—you can manipulate, analyze, and pull information from ...