| Pi, which is denoted by the Greek letter n, is the most famous irrational number in mathematics, statistics and physiscs and is one of the most ancient numbers known to humanity. We know that the area enclosed by a circle of radius 1 is Pi=3.14159... and its circumference is 2Pi. How is it that the same mysterious n appears in both formulas? This writing will unravel the mystery of the irrational number n and its application. |