A growing minority believes it’s a mistake to tie so many mathematical formulas to the famed 3.14... value. Another value, ...

Celebrate Pi Day and read about how this number pops up across math and science on our special Pi Day page. For more than two millennia, mathematicians have produced a growing heap of pi equations in ...

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, ...

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, ...

In 1655 the English mathematician John Wallis published a book in which he derived a formula for pi as the product of an infinite series of ratios. Now researchers, in a surprise discovery, have found ...

More than a hundred years ago, long before anyone imagined supercomputers or black hole simulations, legendary Indian mathematician Srinivasa Ramanujan wrote down a set of formulas to calculate the ...