Originally defined as the ratio between the circumference of a circle and its diameter, pi — written as the Greek letter π — ...

Most people rarely deal with irrational numbers—it would be, well, irrational, as they run on forever, and representing them accurately requires an infinite amount of space. But irrational constants ...

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...