As a constant for all circles, pi is an axiom – a fundamental principle – that can be used to help describe a broad range of phenomena and concepts throughout physics and geometry. This makes it ...

March 14 — a day you’re more likely than most others to eat — or throw — a pie and get a reduced price on your pizza. It’s all in celebration of pi (Greek letter π), the mathematical constant and ...

To calculate totality, NASA scientists incorporate pi into complex mathematical models that account for the circular geometry of Earth and its moon. This allows them to precisely determine the moment ...

Pi is a special number — so special, in fact, that most laypeople are probably aware of it, even if only as a relic of bygone classroom lectures or geometry textbooks. Represented in abbreviated ...