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Poplular Maths Articles

Emmy had a theorem (mathematical nursery rhyme #2)

In the spirit of previous work in abstract algebra, I have, erm, adapted another nursery rhyme. To the tune of “Mary had a little lamb”, a discussion of Noether’s theorem.

dan 2019-01-272020-06-17 Poplular Maths Articles No Comments Read more

Golay Golay Golay (Top of the autocorrelation world)

In 1949, Marcel Golay was thinking about spectrometry. Here’s what happened next…

dan 2019-01-222020-06-17 Poplular Maths Articles No Comments Read more

Topological entropy: information in the limit of perfect eyesight

Entropy means many different things in different contexts, but there is a wonderful notion of entropy which is purely topological. It only requires a space, and a map on it. It is independent of geometry, or any other arbitrary features — it is a purely intrinsic concept. This notion is known as topological entropy.

dan 2019-01-162020-06-17 Poplular Maths Articles No Comments Read more

Abstract algebra nursery rhyme

In the spirit of hilariously advanced baby books like Chris Ferrie’s Quantum Physics for Babies, I have taken to incorporating absurdly sophisticated concepts into nursery rhymes.

dan 2019-01-142020-06-17 Etc., Poplular Maths Articles No Comments Read more

Limitless as that space too narrow for its inspirations

In which I recall, via neurologist Oliver Sacks, some musings of Sylvester from 1877 on the limitlessness of mathematics.

dan 2019-01-032020-06-17 Etc., Poplular Maths Articles No Comments Read more

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