On March 14, math classes across the country will celebrate Pi Day—a national holiday in honor of the mathematical constant pi, which represents the ratio of a circle’s circumference to its diameter ...

Mathematician Carlos Castillo-Chavez says that pi is so important to math that using its simple, geometric definition denies its greater powers. "[Pi] brings you into the world of mathematics, which ...

If robots do take over one day, humans may be obliged to celebrate all sorts of holidays dedicated to mathematical constants that interest our AI overlords. For now we mark only a few such days, ...