It's been a while since I wrote a post in this series, but since I've been teaching Calculus 2 this term the time is right. This all began when a former student wrote to ask how we know that those ...

Infinite Series is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

Email notifications are only sent once a day, and only if there are new matching items. Does an infinite string of numbers starting with 3.14 ring a bell? You may remember pi, defined in school as the ...

Introducing a brand new series of Curious Cases! Hungry for pi? Chow down on this! Pi is the ratio between a circle’s diameter and its circumference. Sounds dull – but pi turns out to have astonishing ...

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

SAN FRANCISCO (KGO) -- No matter how you slice it, dividing a circle's circumference by its diameter yields the same answer: Pi! Pi is the ratio of the circumference of any circle to the diameter of ...