If pi is a “normal” number, the constant would contain much more than Shakespeare, resolving why such a random-looking number lives at the heart of simple circles ...

Pi is an irrational number, meaning that it cannot be expressed as a simple fraction. When you express it as decimal, you get an infinite, non-repeating series of numbers that have no pattern at all.

Happy Pi Day! We celebrate pi on March 14 because 3-14 gives the first three digits of this famous number. But what’s the big deal about pi anyway? Why does it get a day? Well, for starters, it ...

But like the square root of 2, pi is an irrational number, a neverending string of numbers that never repeats; it can't be precisely expressed as a ratio of two integers.

Each year, on March 14, it's become traditional for numerophiles and mathematicians to pause and reflect on the most famous ...

It took place at exactly 1:59 p.m., which are the numbers that follow 3.14 in Pi, and, after the march, Shaw and his wife set up fruit pies for the workers to eat.

(Pi Day was particularly momentous in 2015, when the numerical date corresponded with π up to five digits: 3.1415.) It is also coincidentally the birthday of Albert Einstein.