how to calculate pi

Let us learn how to calculate pi

π (sometimes written pi) is a mathematical constant and its value is the ratio of a circle's circumference to its diameter

• pi is a dimensionless quantity.
• It is an irrational as well as transcendental number.
• Decimal notation of pi is 3.141592.
• Fraction notation of pi is 22/7

Practically a physicist usually needs only 39 digits of Pi to make a circle same as the size of the observable universe accurate to one atom of hydrogen, the number itself depicts as a mathematical curiosity has created many challenges in different fields.

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