Pi is a number used by school pupils, mathematicians, scientists and engineers across the world when discussing circles. There is a relationship between the circumference of a circle (the distance ...

Pi is the number you get when you divide a circle's circumference by its diameter. The first digits, 3.14, are well known but the number is infinitely long. Extending the known sequence of digits ...

There are few sequences of numbers as famous as ... While no fraction of whole numbers could ever describe pi exactly, we can ...