I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

This puzzle originally appeared in Spektrum der Wissenschaft and was reproduced with permission. It was translated from the ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

Using high school algebra and geometry, and knowing just one rational point on a circle or elliptic curve, we can locate infinitely many others. You’re sitting at the end of a long conference table, ...