Fans of the supposedly infinite number "pi" are celebrating international pi day as they express their love for the string of trillions of digits. The day to celebrate the number event falls appropriately on March 14 or 3.14, the approximated value of "pi." Furthermore, the time for the event has been derived from the third and fourth digits after the decimal in the value of pi, i.e., 1:59 p.m.

As per the saying that celebrations can't go without any food and fun, the pi-themed foods and rap performances will be add to the geekiness of the event.

While all the participating institutes celebrate the day in their own way, the fans gathering at the Exploratorium in San Francisco will wear pi jewelry and will have pies to eat, according to the Associated Press reports.

"It's just a way to celebrate our geekiness," Marcel Ball, a member of the University of Alberta's Computing Science Graduate Students' Association, told the Canada.com. "Mostly, the people that come [to Pi Day] tend to be mathematic people, computing science engineers and science students."

Pi is a mathematical constant and is defined as the ratio of circle's circumference to its diameter. The numerical value of pi has been computed to unending sequence of billions of digits that even does not repeat. This infinite sequence of digits has fascinated mathematicians and laymen alike, and much effort over the last few centuries has been put into computing more digits and investigating the number's properties.

The Guinness world record to recite the maximum digits in pi belongs to Chao Lu, a Chinese chemistry student, who rattled off 67,890 digits over 24 hours in 2005.