For most of the world, today is March 14th, or 3/14.

For most of the world, today is March 14th, or 3/14. To most, that date doesn’t have any special meaning. But to us math nerds, it means only one thing: today is Pi Day! Thankfully, it looks like Google has no shortage of number nerds, because the search giant is marking the occasion with a spiffy new logo filled with some of choice geometry formulas.

Chirag Desai @Chirag