How was the mathematical number pi invented?

In 1706 a little-known mathematics teacher named William Jones first used a symbol to represent the platonic concept of pi, an ideal that in numerical terms can be approached, but never reached. read more

as the number of digits of pi goes on forever so had the be the series of the calculation as the above formula has. It is 1/the squares of all numbers 1 to infinity. With the invention of the computer and programmable programs such as c++ the value of pi and its digits has be found to trillions plus of digits. read more

The number π (/ p aɪ /) is a mathematical constant. Originally defined as the ratio of a circle's circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics. read more