Calculating 100 trillion digits of pi is a feat worth celebrating with a pie. (Google Graphic / The Keyword) Three years after Seattle software developer Emma Haruka Iwao and her teammates at Google ...

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, ...

Math fans, celebrate. Today is Pi Day, a holiday that celebrates the world’s most famous irrational number. What are irrational numbers, you ask? As Penn State Berks professor Joni Queen describes ...

The famous mathematical ratio, estimated to more than 22 trillion digits (and counting), is the perfect symbol for our species’ long effort to tame infinity. By Steven Strogatz This article, ...

Every March 14th, mathematicians like me are prodded out of our burrows like Punxsutawney Phil on Groundhog Day, blinking and bewildered by all the fuss. Yes, it’s Pi Day again. And not just any Pi ...