This whole series of posts was motivated by a question from a former student of mine: whenever someone announces they've computed a bunch of digits of π, how do we know it's correct? As I pointed out ...

A former student of mine wrote to ask about π. Specifically, he wondered how, whenever someone announces they've calculated the first 100 billion digits or whatever (actually, the current record is 13 ...

Pi Day 2026 is celebrated every year on 14 March acknowledging the importance of the mathematical constant π, also known as pi. Honouring the mathematical legacy, this day is celebrated by pi ...

Some people can't remember a nine-digit Social Security number without a prompt; Siva Natarajan can recite hundreds of consecutive digits for π, the irrational number that never ends and never repeats ...

π has fascinated mathematicians, engineers and other people for centuries. It is a mathematical constant that is the ratio of a circle's circumference (C) to its diameter (d); This also explains ...

After thousands of years of trying, mathematicians are still working out the number known as pi or "π". We typically think of pi as approximately 3.14 but the most successful attempt to calculate it ...

Pi Day, the International Day of Mathematics, is celebrated on 14 March, due to the date's American shorthand 3/14 – the first three digits of π. The true number of digits after the decimal place ...

Would anyone like a slice of my π pie? Tarehna Wicker, CC BY-NC-SA Math students everywhere will be eating pies in class this week in celebration of what is known as Pi Day, the 14th day of the 3rd ...

For math lovers around the world, March 14 is a holiday, "Pi Day." That's because the date — 3/14 — is also the beginning of the decimal expansion of the world's best-known irrational number: ...