A while ago, I got interested in mathematics, mostly because I had done so poorly at it in school. I’m being coy. I didn’t do poorly; I pretty much failed. I only passed by cheating. Anyway, I bought ...

This is episode two of a three-part series. You can listen to part one here and part three here. [CLIP: Theme music] Rachel Feltman: Ever wondered what math actually is? No? Well, mathematicians sure ...