Most of us first hear about the irrational number π (pi)—rounded off as 3.14, with an infinite number of decimal digits—in ...

We all know pi, at least the first three digits of it. If for some reason you forgot them though, there’s good news. All you need to get that knowledge back is some ...

More than a hundred years ago, long before anyone imagined supercomputers or black hole simulations, legendary Indian ...

Pi Day, which occurs every 14 March – or 3/14, in the US date format – celebrates the world’s favourite mathematical constant. This year, why not try an experiment to calculate its value? All you will ...

Lydia Chain is a freelance science journalist, podcaster, and videographer. She hosts Undark's podcast, and also writes about nature, the environment, and evolution, especially when it involves the ...

Thursday marks Pi Day, otherwise known as 3.14, which is the ratio of a circle's circumference to its diameter. While the average person can easily remember the rounded 3.14 ratio, the exact ratio has ...

Happy March 14—time to celebrate everyone’s favorite mathematical constant. Pi, or π, describes the ratio of a circle’s circumference to its diameter. Since it was first discovered more than 4,000 ...

I used to think Pi Day was a sham. If we’re being honest, most of us are ready to forget about the true value of pi once we’ve finished taking the SATs in high school. On March 14 each year, rather ...