The Indisputable Existence of Santa Claus

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Summary

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How do you apply game theory to select who should be on your Christmas shopping list ? Can you predict Her Majesty's Christmas Message? Will calculations show Santa is getting steadily thinner - shimmying up and down chimneys for a whole night - or fatter - as he tucks into a mince pie and a glass of sherry in billions of houses across the world?

Full of diagrams, sketches and graphs, beautiful equations, Markov chains and matrices, The Indisputable Existence of Santa Claus brightens up the bleak midwinter with stockingfuls of mathematical marvels. And proves once and for all that maths isn't just for old men with white hair and beards who associate with elves.

Maths has never been merrier.

NOW WITH A BRAND NEW CHAPTER

Reviews

Hannah Fry is quickly becoming the David Attenborough of maths.
Telegraph

About the authors

Hannah Fry

Hannah Fry is currently Professor in the mathematics of cities from University College London. In January 2025 she will join Cambridge University as the first Professor for the Public Understanding of Mathematics. In January 2024, Hannah was appointed to be the new president of the Institute of Mathematics and its Applications. Hannah is the author of The Mathematics of Love, The Indisputable Existence of Santa Claus and Hello World and regularly writes for The New Yorker. Her work has included using mathematical models to study patterns in human behaviour, and she has worked with governments, police forces, health analysts and supermarkets. Her TED talks have amassed millions of views and she has fronted television documentaries for the BBC, PBS and Bloomberg TV. She co-hosts the long-running science podcast, 'The Curious Cases of Rutherford & Fry' with the BBC and since 2020, she has been the host of the podcast created for the artificial intelligence company, DeepMind.

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Dr Thomas Oléron Evans