Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

This day only comes 'round' once every year!

More than a century before quantum mechanics was born, Irish mathematician William Rowan Hamilton stumbled onto an idea that ...

Greek mathematician Archimedes of Syracuse calculated the infinite mathematical concept pi in the 200s BCE, which we ...

Learn how to solve quadratic equations using the square root method. It is important to understand that not all quadratics ...

Watch me work through 8 different types of systems of equations by elimination. I will solve by adding, subtracting, using ...

Divide any circle’s circumference by its diameter and you get pi. But what, exactly, are its digits? Measuring physical ...