Pi (π) is probably the most famous number in mathematics. Not only have experts studied it extensively, but it also fascinates amateurs: books, films and songs have been dedicated to the number. Part ...

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 ...