But the meaning behind that symbol goes a little further. According to Live Science, the Pi symbol is meant to represent the idea of Pi as it pertains to a river. "A river's windiness is ...

This may be the biggest legal controversy to engulf the mathematical constant pi since that time in 1897 when the Indiana legislature tried to declare it equal to 3.2: A Brooklyn artist is ...

To find the symbol for pi and have an easier time typing it on your iPhone, you'd have to add the Greek keyboard to your mobile device. Here's how: Launch the Settings app.