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World Pi Day 2023: On every 14th March, World Pi Day is celebrated annually, commemorating the Mathematics Constant Pi, which helped us realize the round shape of our planet. The widely used approximation of pi in calculations is 3.14, while another value of pi is 22/7. Physicist Larry Shaw established Pi Day in 1988, and in 2019, the 40th General Conference of UNESCO declared it International Mathematics Day.
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On 14th March, individuals passionate about mathematics around the world celebrate both Pi Day and the International Day of Mathematics (IDM), with the goal of increasing awareness about the significance of mathematics in shaping our world, while also promoting its beauty and relevance to a broader audience.
Importance of Pi
- Pi is approximately 3.14, and represents the ratio of a circle’s circumference to its diameter.
- Pi is an important mathematical symbol used in physics, engineering, and statistics.
- The Greek letter for p, or π, was adopted as the symbol for pi in the early 1700s.
- It is thought that π was selected as an abbreviation for periphery or perimeter, which measures the distance around the outside of a circle, also known as its circumference.
Why Pi Day is celebrated on March 14?
- 14th March is represented as 3/14 in the month/day format, matching the first three digits of pi.
- Pi Day was established on March 14, 1988, by physicist Larry Shaw, who organised a celebration at the San Francisco Exploratorium to make mathematics more engaging and enjoyable.
- March 14, 1879, is also the birthday of Albert Einstein, one of the most influential scientists of the 20th century.
Who discovered Pi (π)?
Pi (π) was discovered by the renowned Greek scientist and mathematician Archimedes (287-212 BC). However, some Indian scholars also credit the great Indian mathematician Aryabhatta with the discovery of pi. Aryabhatta also determined the approximate value of pi through his formula. The pi symbol “π” was first suggested by the British mathematician William Jones, and Leonard Euler is also credited with its use.
What is the use of Pi (π)
Pi (π) serves various purposes in the field of mathematics, with its primary uses being:
- Finding the circumference of a circle
- Determining the area of a circle
- Measuring the length of a river course
- Calculating the areas of various circular objects
- Helping to determine the shape of the Earth
- Finding the distance between stars.
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