From schoolkids learning about constant numbers to pizza deals to school serious math equations, here’s a slice of Pi Day fun ...

Several national retailers are offering Pi Day discounts and special deals on March 14 to celebrate the mathematical holiday.

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 ...

By Lysandros LysandrouMarch 14th is celebrated globally as Pi Day. Of all mathematical constants, Pi is the best known and commonly approximated as 3.14. Thus, Pi Day honours the constant Pi ...