Pi Day is an annual celebration of the mathematical constant π (pi) that is observed on 14th March every year. Pi is a Greek letter “π” which is the symbol used in mathematics to represent a constant whose numerical value is approximately 3.14159. It is an annual opportunity for math enthusiasts to recite the infinite digits of Pi and to learn more about Pi.
History of Pi:
The mathematician of Egypt, Archimedes of Syracuse (287–212 BC) calculated the area of a circle by a formula that resulted in the approximate value of π to be 3.1605. Mathematically, it is impossible to express Pi as a common fraction as it has a never-ending and repeating decimal representation. Originally, it is defined as the ratio of a circumference of a circle to its diameter, i.e. at twice of its radius.
Since its discovery, pi has been used in every field like Engineering, construction, GPS, simulation, radio, TV, telephones, power generation, motors… all the credits go to the magic of pi!