Learning to do Math in your Head
The author of the book is Arthur Benjamin. He gave a demonstration of his mad skillz at TED a while back, which I’m embedding here because it’s awesome.
Migrating this blog has been fun because it’s forced me to look over a lot of the old content I’ve written. A couple years ago I found Benjamin’s Ted talk, which has inspired all this craziness. I think it’s good to keep the brain fresh by taxing skills that one might not have used in a while.