Unequal, 9781805223061
Hardcover
Equality isn’t as simple as it seems; maths reveals hidden beauty.
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Unequal

the maths of when things do and don’t add up

$38.25

  • Hardcover

    400 pages

  • Release Date

    1 September 2025

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Summary

Beyond the Equals Sign: Exploring the Beauty of Mathematical Inequality

At first glance, the concept of equality in maths seems unambiguous. Denoted by two parallel lines, the equals sign looks elegant, simple and entirely black and white.

But between those two lines lies a grey area, a world of flexibility, creativity and innovation. And once you see this nuance, you quickly realise that sameness and difference, equality and inequality, are not nearly as immutable as they m…

Book Details

ISBN-13:9781805223061
ISBN-10:1805223062
Author:Eugenia Cheng
Publisher:Profile Books Ltd
Imprint:Profile Books Ltd
Format:Hardcover
Number of Pages:400
Release Date:1 September 2025
Weight:500g
Dimensions:220mm x 138mm x 40mm
What They're Saying

Critics Review

PRAISE FOR IS MATHS REAL?‘A generous tour of mathematics for anyone whose instincts tend less towards “Just tell me the answer” and more towards “Wait, but why?”’ - Jordan Ellenberg, author of ‘Shape’‘Intriguing … Celebrates the dizziness and disorientation engendered by childlike questions that hint at the deep mysteries beneath’ - Anil Ananthaswamy‘Passionate, eye-opening and accessible … a love letter to the curious spirit of the discipline’ - Waterstones Best Books of 2023‘A brilliant rebuttal to those who see math as only about right answers, rather than about creative discovery. [Cheng] masterfully uncovers what’s simply profound in the profoundly simple’ - Francis Su, author of ‘Mathematics for Human Flourishing’

About The Author

Eugenia Cheng

Eugenia Cheng is Scientist in Residence at the School of the Art Institute of Chicago and Honorary Visiting Fellow of Pure Mathematics at City, University of London. A Cambridge graduate, she previously taught at the Universities of Cambridge, Chicago and Nice. She is also a concert pianist, fluent in French, and the author of several Profile bestsellers, including How to Bake Pi and x + y. In 2017 her book Beyond Infinity was shortlisted for the Royal Society Science Book Prize.

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