Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers. This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ...

The proof resolves a nearly 80-year-old problem known as the Duffin-Schaeffer conjecture. In doing so, it provides a final answer to a question that has preoccupied mathematicians since ancient times: ...

Originally defined as the ratio between the circumference of a circle and its diameter, pi — written as the Greek letter π — appears throughout mathematics, including in areas that are completely ...

The Irrational season 2 aired its finale Tuesday, April 25 on NBC. The series was created for television by Arika Lisanne Mittman and loosely based on the real life of Dan Ariely. It stars Jesse L.

When my students grow too dependent on their calculators, I ask them to find a number that, when multiplied by itself, gives them 2. Students quickly see that since 1² = 1 and 2² = 4, the answer has ...

The Vampyr Nation is pinned down and enacting its final plan, but Pythagoras is watching and has his own designs which will end the Vampyr Nation once and for all. Plus, he is being aided by ...