Check out every mathematician's slice of heaven with National Pi Day!

OMAHA, Neb. (KPTM) — National Pi Day is celebrated on March 14 or 3.14 because the first three numbers of pi are 3.14, according to nationaldaycalendar.com.

Pi is a mathematical constant that is used to describe the ration between the circumference and diameter of a circle.

The character π is used to represent pi.

The number has been around for around 4000 years, but accurately calculating it has been a more recent development.

The Egyptians and Babylonians around the year 2000 BC were able to use it to help build.

Since famous mathematicians Archimedes, Fibonacci, Adriaan van Roomen, ETC. all were able to accurately calculate π using various methods.

In 1706, Welsh mathematician William Jones decided to use the Greek letter π to represent pi.

National Pi Day is not just for math enthusiasts. It is also for anyone who loves pie including pizza pie.

How to celebrate this constant holiday:

• Memorize as many numbers of π as you can
• Eat a slice of pie
• Don't forget about pizza pie
• Host a pie eating contest
• Attend a local event
• Use #NationalPiDay on social media to share how you celebrated

Nebraska SciFest is holding an event for Pi Day in Gene Leahy Mall.

In 1988, Larry Shaw hosted the first official large-scale Pi Day celebration at the San Francisco Exploratorium, said the website.

It wasn't until March 12, 2009 that U.S. House of Representatives officially made Pi Day a holiday with observation on March 14.