Joseph Nebus @nebusj@mathstodon.xyz

(The oral syringe is for a cough syrup the rabbit takes as possible treatment for allergies. It turns out rabbit allergies are an under-explored part of veterinary medicine. In the second picture she's chinning the empty syringe because she really likes it and wants everyone to know that it's hers.)

Rabbit, rabbit.

Nearing the end of the 2020 A-to-Z! For the letter W, the Wronskian.

https://nebusresearch.wordpress.com/2020/11/25/my-all-2020-mathematics-a-to-z-wronskian/

Also there's much I did not know about Józef Hoëne-Wroński and still don't.

For the letter V, my 2020 A-to-Z comes to the subject of Velocity:

https://nebusresearch.wordpress.com/2020/11/18/my-all-2020-mathematics-a-to-z-velocity/

Thinking of that time my wife and I were in France and the clerk at the 24/7 convenience store (closed Tuesdays) asked how English speakers pronounced the name of the Lion candy bar, and we told him, and he repeated it and was so delighted by the sound of "lie-ohn".

That period after accidentally closing a file when you can't find any hint about what file it was and haven't yet accepted that if it's taking this long to figure out what it was you probably didn't need it open.

I apologize for slipping behind on this again. November's been a heck of a month.

For the 2020 A-to-Z the letter 'U' brought me to Unitary Matrixes:

https://nebusresearch.wordpress.com/2020/11/04/my-all-2020-mathematics-a-to-z-unitary-matrix/

It's a little rough because the first half of last week was not a good one for my focus.

Rabbit, rabbit.

When I got to the letter T for my 2020 Mathematics A-to-Z glossary, I picked Tiling, always a fun subject:

https://nebusresearch.wordpress.com/2020/10/28/my-all-2020-mathematics-a-to-z-tiling/

After it posted I discovered I had already written about it for my 2018 A-to-Z, so rf. It's cute, though, comparing what parts I figured were more important and what I could gloss over in the unintentional rewrite:

https://nebusresearch.wordpress.com/2018/11/30/my-2018-mathematics-a-to-z-tiling/

Join me in 2022 when I do tiling *again* for no good reason.

Someone asked me to explain Statistics for the letter S. I got political, because the subject *is*.

https://nebusresearch.wordpress.com/2020/10/21/my-all-2020-mathematics-a-to-z-statistics/

For the letter R, this year, I try to explain something about Renormalization. Difficulty level: I do not open with quantum electrodynamics.

https://nebusresearch.wordpress.com/2020/10/14/my-all-2020-mathematics-a-to-z-renormalization/

For the letter Q, in this year's A-to-Z, I wrote about Quadratic Forms and finally, after decades, thought about what it is makes something a 'form'.

https://nebusresearch.wordpress.com/2020/10/07/my-all-2020-mathematics-a-to-z-quadratic-form/

And then I failed to follow up! Back on the A-to-Z, my next topic was Permutation.

https://nebusresearch.wordpress.com/2020/10/01/my-all-2020-mathematics-a-to-z-permutation/

The complete lack of mention of Pence taking over as Acting President makes me think of how King Charles II supposedly told James Duke of York there that he didn't need a bodyguard in London, as "no one would kill me to make you King."

Don't know why this Peanuts comic from 1964 is on my mind.

https://www.gocomics.com/peanuts/1964/02/10

I'm not sure what the white rabbit there is doing with her foreleg but I'm impressed by it.

Rabbit, rabbit.

I have a special event to announce! I was fortunate enough to host the 141st edition of the Playful Math Education Blog Carnival, featuring many links to mathematics fun, educational, philosophical, or at least accompanied by amusement park pictures:

https://nebusresearch.wordpress.com/2020/09/28/playful-math-education-blog-carnival-141/