Browsing: Math

One string in each of the following pairs can be unraveled into a circle—the so-­called unknot. Which one is it?Show puzzle solutionThe knots at the top…

The original version of this story appeared in Quanta Magazine.Hard problems are usually not a welcome sight. But cryptographers love them. That’s because certain hard math…

If you’ve ever shuffled a deck of playing cards, you’ve most likely created a unique deck. That is, you’re probably the only person who has ever…

Higher education stakeholders have noted that math anxiety can hold students back from pursuing some disciplines or major programs, but a new analysis from Gallup finds…

A few months before the 2025 International Mathematical Olympiad (IMO) in July, a three-person team at OpenAI made a long bet that they could use the…

In 2014 Mura Yakerson, a college student at the time, decided to practice driving in a quiet area in the countryside near Saint Petersburg, Russia. Then…

Draw four lines beginning and ending at the gray points to break this square into pieces that can be rearranged into five identical squares.Show puzzle solutionBonus:…

August 12, 20255 min readThe Math Trick Hidden in Your Credit Card NumberFind out how this simple algorithm from the 1960s keeps your wallet safeBy Jack…

A defining memory from my senior year of high school was a nine-hour math exam with just six questions. Six of the top scorers won slots…

Harmonic, an AI startup co-founded by Robinhood CEO Vlad Tenev, announced Monday the beta launch of an iOS and Android chatbot app where users can access…