In 1655 the English mathematician John Wallis published a book in which he derived a formula for pi as the product of an infinite series of ratios. Now researchers, in a surprise discovery, have found ...

Mathematician Carlos Castillo-Chavez says that pi is so important to math that using its simple, geometric definition denies its greater powers. "[Pi] brings you into the world of mathematics, which ...

Add Yahoo as a preferred source to see more of our stories on Google. Today marks National Pi Day in the United States and around the world. The holiday commemorates a timeless symbol beloved by many ...

Add Yahoo as a preferred source to see more of our stories on Google. Calling all mathematicians, a day where math and food meet is finally here! March 14, National Pi Day, honors 3.14 (π) the ratio ...

March 14—aka Pi Day—isn’t just for math nerds. It’s the one day a year where we celebrate the magic of the number π (pi), which starts at 3.14 and goes on forever. But Pi Day isn’t just about ...

Tomorrow is March 14, a.k.a. Pi Day. Regrettably, this isn't an official national holiday (yet). But it is a holiday that will be celebrated all over the Internet. I was surprised to learn that one of ...