Tech companies are famous for having some of the world's most challenging and competitive interview processes. That's one reason why rumors tend to swirl around what it takes to get hired at giants like
The math wizards at Numberphile have brought back an age-old multiplying algorithm known as halves and doubles, peasant math, Egyptian math, or—as math presenter Johnny Ball describes it—Russian multiplying.
The quadratic equation has frustrated math students for millenniums. But a math professor at Carnegie Mellon University in Pittsburgh may have come up with a better way of solving it. “When I stumbled
The optical illusion of the year is an animated cat’s cradle that turns both horizontally and vertically and both clockwise and counterclockwise. The illusion hails from Frank Force, a programmer and game
1. In this word-sum, each letter stands for one of the digits 0–9, and stands for the same digit each time it appears. Different letters stand for different digits. No number starts with 0. Find all the