Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

A team of Swiss researchers are claiming that their high-performance computer has added 12.8 trillion new digits to the number Pi, in a calculation that reached a record-breaking 62.8 trillion figures ...

Most people first learn about the number π (pi) in school, usually when studying circles. It is often written as 3.14, but this is just an approximation. In reality, pi is an irrational number, ...