【實用休閒app】Recite Pi|最夯免費app-綠色工廠好玩App

The number pi (π) is a mathematical constant that is the ratio of a circle's circumference to its diameter, and is approximately equal to 3.14159. It has been represented by the Greek letter π. π is an irrational number with infinity number of digits.

Use this application and challenge yourself to see how many digits of pi you can recite!. This is also a good way to improve your memorization skill.