The humorous plots in his xkcd webcomic are one of the favorite parts for many readers. Their distinctive, Tufteian style delivers the information – in this case, a punch line – without ...

This goal needs more discussion. In run.py, each time the user runs the program, the results will be stored into output file with filename randomly generated. It is difficult for users to combine ...

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 ...