Math lovers celebrate today (3/14) as Pi Day, in honor of the irrational number pi. Pi, or π, is defined as the ratio of the circumference of a circle to its diameter. Pi is an irrational number, ...

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 ...

Pi is a Greek letter that represents one of the most useful ratios in mathematics relating a the diameter of a circle to its circumference. Its value is an irrational number, made up of endless ...

The number pi (π) appears in the most unlikely places. It can be found in circles, of course—as well as in pendulums, springs and river bends. This everyday number is linked to transcendental ...

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Math lovers celebrate today (3/14) as Pi Day, in honor of the irrational number pi. Pi, or π, is ...