It’s the sort of easy maths problem that you can work out in a few minutes using pencil and paper, but physicists in China, Canada and Singapore have now solved pairs of linear equations like this one ...

A New Computer Proof ‘Blows Up’ Centuries-Old Fluid Equations For more than 250 years, mathematicians have wondered if the Euler equations might sometimes fail to describe a fluid’s flow. Now there’s ...

What were the most important equations of 20th-century science? Here are 11 essays, aimed at non-specialists, each centred on a different equation. The authors are distinguished in their various ...