In 1843, William Rowan Hamilton had a four-dimensional flash of insight that still shapes our three-dimensional world.

Flex your math muscles with this weekend’s brain teaser. Play now.

Abstract: In this issue, “25 Years Ago” revisits the article “Basic Problems in Stability and Design of Switched Systems” by Daniel Liberzon and A. Stephen Morse, in IEEE Control Systems Magazine, vol ...

Laura is a professional nitpicker and good-humored troubleshooter with over 10 years of experience in print ... the Free Checking option comes with free starter checks and other basic features ...

Abia State government has said that basic education in public schools remains free of charge and compulsory, warning that anyone caught extorting money from parents before enrolling any pupil will ...

Make sure to bookmark this page or add it to your phone’s home screen to find a new challenge each day. You can also get a weekly email reminder by signing up for our crossword newsletter. Here ...

Altman is a big fan of universal basic income, which he seems to think ... the supposed bonanza that will come when all of our big problems are solved. Let’s concede that AI might actually ...

To learn math, students must build a mental toolbox of facts and procedures needed for different problems. But students who can recall these foundational facts in isolation often struggle to use ...

If you want to debate whether one investment yielding 4.5% is better than a less risky investment yielding 4.2%, you can usually count on an answer from Christine Benz, who writes a regular column ...

Designed to "change how the world prints", HP Print AI will look to make printing less of a chore, tackling annoying or tricky challenges for home users and office workers alike. The launch should ...