Obsidian Wings

Some math fan service

by liberal japonicus

The discussion of programming brought a lot of math love out, so I thought I'd toss this up as a quasi-open thread.

This Guardian article just popped up about two high school students presenting about a trigonometric proof of the Pythagorean theorem. I'm still wondering what the shape of the proof would be, but the internet tossed this interesting page up, a list of all the proofs of the Pythagorean theorum, part of a larger labor of love site called Cutting the Knot by Alexander Bogomolny. Bogomolny passed away in 2018, but the site is still being curated. It's pretty massive, so anyone who pokes around in it, if you have a page or section you like, bring it up here, toss in your thoughts about what a trigonometric proof of the theorem would be or give any other math things you feel like putting up.

 

Trump and the Ides of March (an open thread)

by liberal japonicus

Lots of folks say that Trump is going to be charged in NY, which is the first of four listed legal problems facing Trump that are listed in this BBC article.

In other news, my wife and daughter have become baseball fans because of the WBC and Samurai Japan and possibly because of Lars Nootbaar.

And some of the other life stories are interesting as well, which can be found going through the rosters.

An open thread