Pi. Glowing neon icon on brick wall background Icon of "Pi" in a realistic neon sign style. The icon is created with a pink glowing neon light on a dark brick wall. Modern and trendy illustration with ...

Pi Day vector background. Baked cherry pie with Pi Symbol and ribbon. Mathematical constant, irrational number, greek letter. Abstract digital illustration for March 14th. Poster creative template ...

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links. Happy Pi Day! Every March 14 (or 3.14) we honor ...

One of the most important numbers in math might today be named after the Greek letter π or “pi”, but the convention of representing it this way actually doesn’t come from Greece at all. It comes from ...