WEST PALM BEACH, Fla. (AP) — Math enthusiasts around the world, from college students to rocket scientists, celebrate Pi Day, which is March 14 or 3/14 — the first three digits of an infinite number with many practical uses. Many people will mark the day with a slice of pie — sweet, savory or even pizza.

Pi Day is a favorite holiday for both food lovers and mathematicians. For the foodies, the reasoning is simple. Pi Day brings discounts and deals for people looking to grab a pizza to celebrate the holiday.

Today is March 14th, celebrated as National Pi Day. This day honors the mathematical constant 3.14, which represents the ratio of a circle's circumference to its diameter.

March 14 marks National Pi Day, a celebration of the mathematical constant pi, represented by the Greek letter π, which is approximately 3.14.

Years ago, the infinite decimal 3.14 or its Greek symbol pi was mostly known to math and science geeks, but now March 14 is also a day for tasty deals. Here’s a little history to whet the appetite. The first “Pi Day” celebration was held in San Francisco in 1988 when a physicist at the Exploratorium,

While math enthusiasts recognize the date for its significance in geometry, restaurants across the U.S. have embraced National Pi Day by offering special deals on pizza and pie.