The letter 'M' brought my A-to-Z for the year to martingales, because the other request was the Mittag-Leffler function and I couldn't think of any way to explain *that*.

nebusresearch.wordpress.com/20

And in my A-to-Z ... I got asked to explain linear programming. I can give it a try at least.

nebusresearch.wordpress.com/20

Is it possible to write about Julia Sets without including any pictures? Of course. Is it wise? This is a hard question.

nebusresearch.wordpress.com/20

I took a couple pages from an analysis book for the next of my A-to-Z essays: the Infimum.

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The letter H for this season's A-to-Z gave me a chance to dip into mathematical physics. It's the Hamiltonian.

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For the letter G: Green's Function. Also, I learn how much I don't know the actual rules about what LaTeX you can do in a free Wordpress blog.

nebusresearch.wordpress.com/20

My series got up to the letter F and, by several requests, Fourier series. My unstated challenge in this: see how far I could go without writing 'sine' or 'cosine' at all.

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I got asked to say something about encryption schemes for the A-to-Z and did my best to say things that weren't too wrong.

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The fourth topic asked for in my A-to-Z this year was Differential Equations. I had some fun thinking about what they are and why they're interesting.

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Cows? On *our* Internet? It's more likely than you think.

thefarside.com

The third of my A to Z essays came out Tuesday: Category Theory, as explained by a person who's just knowledgeable enough of the subject to know he shouldn't be writing an essay about category theory.

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I apologize for the delay in following up. My second A to Z essay, on Buffon's Needle, is up at nebusresearch.wordpress.com/20

This one is also based on a reader request, from Peter Mander of the carnotcycle.wordpress.com thermodynamics blog.

On my mathematics blog I'm trying an A to Z run, writing one essay for some mathematical topic for each letter of the (English) alphabet. The start of the series was A, for abacus, per a reader request.

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A friend mentioned how he wished he knew of a pop-mathematics essay about the Ricci Tensor. So he could understand what the Ricci Tensor is about and why we need it.

This reminded me I *had* written a pop-mathematics essay about the Ricci Tensor. Also that like a third of the essay is me admitting I'm not sure I understand what the Ricci Tensor is *about* or why we need it.

So I do keep up a mathematics blog, and try to read the syndicated comics for mathematical topics brought up in the funny pages. Here's today's essay, featuring about half the comic strips of the past week:

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Oh yeah, I'd written several intro essays about information theory, using the college basketball tournaments as inspiration. nebusresearch.wordpress.com/20 has links and short recaps to all them, including my efforts to estimate the entropy of, like, football and baseball scores.

So, I read a lot of comic strips. When I run across ones that mention mathematical topics I put them on my blog, with some discussion of what they make me think about. Yesterday's post is here:

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I wrote a bit about a bisection of a triangle's area which, when I read it, made me lower the book and call it a rotten liar. (It wasn't lying.) The thing might be old hat to you, but it startled *me*.

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(I have a follow-up post to it scheduled to post later today.)

I should take my chance at

I'm a mathematics PhD. Unemployed by academia, but at least working in Geographic Information Services. My work was in inviscid fluids and Monte Carlo methods, but I keep thinking I know knot theory better than I do.

nebusresearch.wordpress.com
is my pop-mathematics blog. Its big features are essays based on topics raised by comic strips, and a roughly annual A-To-Z feature describing one mathematics term for each letter.

A Mastodon instance for maths people. The kind of people who make $$\pi z^2 \times a$$ jokes. Use $$ and $$ for inline LaTeX, and $ and $ for display mode.