Pi Day

Pi Day

Why in the News?

Pi Day is celebrated every year on March 14th to honor the mathematical constant π (pi). The day also marks the birth anniversary of Albert Einstein (1879) and the death anniversary of Stephen Hawking (2018).

Significance of Pi:
Pi represents the ratio of a circle’s circumference to its diameter and is an irrational, infinite number. The Greek letter π was first introduced in 1706 by Welsh mathematician William Jones, inspired by the words “periphery” and “perimeter.”

India’s Contribution to Pi:
Aryabhata (476-550 CE), an Indian mathematician and astronomer, approximated pi as 3.1416 in his work Aryabhatiya.
Indian mathematician Srinivasa Ramanujan, in 1914, published the first algorithms for calculating pi to millions of digits.

Applications of Pi:
Pi is crucial in mathematics and engineering for calculating properties of circles, wave equations, and structural designs.
Space agencies like the Indian Space Research Organisation (ISRO) rely on pi to determine orbital paths, satellite positioning, and spacecraft trajectories.
Pi is also used in everyday life, such as in the construction of domes and bridges, making it a fundamental constant in both science and technology.

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