Pi is 3.14159, plus some, ad infinity, a number sequence that doesn’t repeat and whose end cannot be reached. On the 14th day of the third month of each year, 3/14 in the US, we celebrate Pi Day. This mathematical constant—used to calculate the area and circumference of a circle—is unique. It’s irrational and transcendent, practical and abstract.

## Why Celebrate Pi day?

Pi Day is an annual celebration of the mathematical constant π. Pi Day is observed on March 14 since 3, 1, and 4 are the first three significant digits of π. In 2009, the United States House of Representatives supported the designation of Pi Day.

## Google employee Emma Haruka Iwao Break Pi Calculation world record?

The value of the number pi has been calculated to a new world record length of** 31 trillion digits** far past the previous record of **22 trillion **Pi is used in engineering, physics, supercomputing and space exploration – because its value can be used in calculations for waves, circles and cylinders. Emma Haruka Iwao, a Google employee from Japan, found the new digits with the help of the company’s cloud computing service.

Pi is useful not only for measuring circles but it also appears in calculations for everything from the period of a pendulum to the buckling force of a beam,” said mathematician Matt Parker I feel very surprised,” Ms Iwao, who has worked at Google for the past three years, said of her achievement.