permutation

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The mathematics of shuffling

A journey into the maths of card shuffling gives us a great insight into how mathematicians work.

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Maths in a minute: Flipping pancakes

In time for pancake day here's a problem about flipping pancakes. It turns out to be surprisingly hard.

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Of pancakes, mice and men
Genes normally evolve by tiny mutations, but every now and then something more radical occurs and entire genes along a chromosome get flipped. Understanding gene flipping boils down to solving a problem from pure maths. Colva Roney-Dougal and Vincent Vatter explain, taking us on a journey from waiters sorting pancakes, via one of the richest men in the world, to the genetic similarities of mice and humans.
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Ringing the changes
Did you know that church bell ringers have to memorise sequences of several thousand numbers, and that it can take up to 18 hours to translate these sequences into perfect bell ringing? Burkard Polster and Marty Ross explain why, and explore the maths behind bell ringing.
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Knitting by numbers
Lucinda Mathews visualises tricky surfaces
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Chaos, chance and money
With the credit crunch dominating the news, columnists have been wailing about "chaos in the markets", and "turbulent" share prices. But what does move the markets? Are they deterministic, or a result of chance? Colva Roney-Dougal explores the maths, from chaos to group theory.
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Rubik success in twenty-six steps
Computer scientists prove how long it should take you to solve Rubik's cube
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Take a break
There are many errors that can occur when numbers are written, printed or transferred in any manner. Luckily, there are schemes in place to detect, and in some cases even correct, such errors almost immediately. Emily Dixon takes a break and discovers that codes are not just for sleuths.
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  • Maths in a minute

    Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

  • Chocolate and mayonnaise
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    What do chocolate and mayonnaise have in common? It's maths! Find out how in this podcast featuring engineer Valerie Pinfield.

  • From clicks to chords
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    Is it possible to write unique music with the limited quantity of notes and chords available? We ask musician Oli Freke!

  • The lungs of the Earth

    How can maths help to understand the Southern Ocean, a vital component of the Earth's climate system?

  • SBIDER Presents: Shining a light on COVID modelling
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    Was the mathematical modelling projecting the course of the pandemic too pessimistic, or were the projections justified? Matt Keeling tells our colleagues from SBIDER about the COVID models that fed into public policy.

  • Mathematical snapshots: Daniel Kreuter

    PhD student Daniel Kreuter tells us about his work on the BloodCounts! project, which uses maths to make optimal use of the billions of blood tests performed every year around the globe.