If there’s anywhere you’ll find a legitimate free copy, it’s from the book’s publisher. For Python Crash Course, No Starch Press is the official publisher. On rare occasions, they might offer a free ...
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Dot Physics on MSNOpinion

Numerical Differentiation Made Simple With Python

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 ...