Rafael on Nostr: A thousand years ago, I was a mathematician. My kids are going to be going into ...

A thousand years ago, I was a mathematician. My kids are going to be going into calculus pretty soon and while I can help them with their algebra homework, my memory of more advanced stuff is shaky. I've been working through this book and enjoying it. Each section has a few simple proofs that use neat tricks. They're really satisfying! #books #math