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 ...

Unfortunately, the pi symbol is not included in this roster. However, there are a few other ways to get to it on your iOS device. Read more: 12 Things You Should Stop Doing On Your Android Phone ...

The value of the Pi was first calculated by Archimedes. The Pi symbol was introduced by William Jones, a Welsh mathematician, in 1706. In 1737, Leonhard Euler popularised the usage of the symbol.