Pi, denoted by the Greek letter "π", has been part of human knowledge for millennia, but it wasn't until 1988 that physicist Larry Shaw organized what is now recognized as the first "Pi Day" celebration at the San Francisco Exploratorium science museum. For instance, there are astounding formulae in which smaller and smaller numbers add up to pi and one of the earliest such infinite series to be discovered says that pi equals four times the sum 1 - 1⁄3 + 1⁄5 - 1⁄7 + 1⁄9 - 1⁄11 + ⋯.
Google has dedicated a doodle to mark 30 years of "Pi Day", a day first recognised by physicist Larry Shaw in 1988 to honour the mathematical constant.
Pi represents the ratio between a circle's circumference (perimeter) to its diameter (distance from side to side passing through the center), and is a fundamental element of many mathematical fields, most significantly Geometry.
"As an irrational and transcendental number, it will continue infinitely without repetition or pattern".
Google asked Cronut inventor Dominique Ansell to create the doodle for Pi Day.
Google are celebrating the 30th anniversary of the math-inspired holiday with a Doodle baked and built by the award-winning pasty chef - and creator of the famous Cronut - Dominque Ansel.
We celebrate the best of Google's graphic art works.
In geometry, "Pi" plays an important constant in finding out the area of a circle.
However, many people take it up as a challenge to count up to several hundred of decimal places of pi.
Meanwhile, NASA is also celebrating Pi Day in its own special manner.
It is believed that physicist Larry Shaw was the first to celebrate the day at the Exploratorium in San Francisco with his peers and staff nearly 30 years ago.
People show their appreciation of the constant number with eating pies and pizzas, throwing pies and holding discussions about the significance of the number. Other than matching the first three digits of the value, it also happens to be Albert Einstein's birthday.
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