A point that you get close to an infinite number of times is called an accumulation point. Kra, Moreira, Richter and Robertson proved that you can cleverly choose one of these spots to find your ...

Pi can calculate the circumference of a circle by measuring the diameter — the distance straight across the circle's middle — and multiplying that by the 3.14-plus number.

A Proof from Antiquity Mathematics has an unlimited number of prime number building blocks. Euclid proved this more than 2,000 years ago with a simple thought experiment. Suppose there were only a ...

Pi is an irrational number, meaning it has an infinite number of nonrepeating decimal places. But it turns out, NASA scientists need only a small slice of pi — the first 15 decimal places — to ...