A few years ago, the New York Times ran an article explaining pi. Today being pi day (and only one year before Super Pi Day), I thought it’d be worth posting this.

True, the article is full of math, but I think it’s one of the most elegantly written explanations of the math surrounding pi you’ll ever see. And, if you make it to the very end, you’ll have a handle on the origins of calculus, which is no mean feat.