How To Describe This Image: Number lines are a challenge to describe in a manner that is helpful and efficient. Soon, number lines in digital assessments may be coded so that they are navigable ...

Interestingly, when you look at them it isn't hard for those of us who are not mathematicians to see why. The former explains complex elements within a simple framework. The latter is long and messy.

Just as a terrestrial globe cannot be flattened without distorting the distances, it seemed impossible to visualize abstract mathematical objects called flat tori in ordinary three-dimensional space.

The book 50 Visions of Mathematics is a collection of 50 short essays by 50 maths writers and a foreword by Dara O Briain. Launched on Wednesday to celebrate the 50th anniversary of the Institute of ...