A geometric proof of a famous Wallis product for pi.
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If you want to dive into the relevant ideas required to make this proof more rigorous, the relevant search term is "dominated convergence".
https://en.wikipedia.org/wiki/Dominat...

Here's a good blog post on the topic:
https://www.math3ma.com/blog/dominate...

In the video, I referenced our own blog post expanding on this argument. Unfortunately, it managed to get lost during a website transition.

Another approach to this product by Johan Wästlund:
http://www.math.chalmers.se/~wastlund...

With more from Donald Knuth building off this idea:
https://apetresc.wordpress.com/2010/1...

Music by Vincent Rubinetti:
https://vincerubinetti.bandcamp.com/a...

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