Anyone who's had to learn math or physics in school may have encountered pi at one point. More popularly known and written out in its Greek lowercase letter counterpart, π, it's essentially the ratio ...

That’s it. No matter what app you’re in or font you’re using, the Pi symbol will appear in the place of the letter “P” when you hold down the option key. Then, when you want to type the Pi symbol, ...

Today marks National Pi Day in the United States and around the world. The holiday commemorates a timeless symbol beloved by many in mathematical and scientific communities, while making the most of ...