Infinity Arrow Animation with PyGame in Python on Cloud IDE repl.it @gjenkinsedu

Uploaded July 2020 | Updated September 2026, 3 weeks ago

Show running PyGame animation of arrow following a lemniscate (infinity) shape running on repl.it IDE on cloud both on Web and on a Phone. I have a short tutorial on how the code works. The code is originally developed in PyCharm Python3.7 on a Mac. Then pasted onto a repl.it free cloud IDE. The then run from the cloud.

code on repl.it: https://repl.it/talk/share/PyGame-Arrow-Animation-on-Lemniscape-infinity/47846

Parameterized formula site: mathworld.wolfram.com/Lemniscate.html

To install my environment of Python 3.8 and Pygame see my videos:
Windows 10: youtu.be/AUiM1UaRCPc
Mac: youtu.be/oyzH4M6X6F4
Ubuntu Linux: youtu.be/hpo2Tk2s2pU

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