Joseph Nebus @nebusj@mathstodon.xyz

My third essay for the Little 2021 Mathematics A-to-Z went to the Torus, and as you'd expect, board game design.

https://nebusresearch.wordpress.com/2021/10/13/my-little-2021-mathematics-a-to-z-torus/

My second essay for the Little 2021 Mathematics A-to-Z was a companion to multiplication ... A, for Addition.

https://nebusresearch.wordpress.com/2021/10/06/my-little-2021-mathematics-a-to-z-addition/

If I may speak up for my own writing here, I've begun my mathematics blog's annual glossary project. In line with my very worn, battered spirits, it's a smaller one than usual. To start the Little 2021 Mathematics A-to-Z, the letter ... M, for Multiplication.

https://nebusresearch.wordpress.com/2021/09/29/my-little-2021-mathematics-a-to-z-multiplication/

Rabbit, rabbit.

The eternal struggle in mathematics education.

https://www.gocomics.com/gil/2021/09/19

My plan B, for when I get tired of the day job.

https://www.gocomics.com/viivi-and-wagner/2021/09/17

"Why do I need to take an art class just to teach mathematics," I said.

https://www.gocomics.com/andertoons/2021/09/16

Rabbit, rabbit.

Trying to get my mathematics blog back out of torpor here. Yesterday I learned something about Giuseppe Peano and wrote about it.

https://nebusresearch.wordpress.com/2021/08/18/turns-out-that-giuseppe-peano-tried-to-create-an-international-language-out-of-latin/

Me, having spent 35 minutes fiddling with alternatives to get this one geometry-related coding task solved: *Fine*, I'll *think* about it instead.
[ One minute later ]
OK, solved.

Rabbit, Rabbit.

Thinking of the 90s Internet Guy arguing that by the time of Star Trek: The Next Generation Venus must have been terraformed, because of that time Data started telling a limerick about how there was a young lady from Venus.

Still no idea if the argument was in earnest.

Anyway that's what you missed not being on Usenet.

Rabbit, rabbit.

For folks who typed in machine-language programs from Compute! and Compute!'s Gazette in the 80s ... I finally went through and figured out how the error-detecting checksum worked for their MLX 2.0 code entry system worked.

https://nebusresearch.wordpress.com/2021/06/16/how-did-computes-and-computes-gazettes-new-mlx-work/ and if you want to run it in Octave, https://nebusresearch.wordpress.com/2021/06/21/heres-some-matlab-octave-code-for-your-mlx-simulator/

I mean this as a way of conserving time and mental energy in exam conditions but I'm not sure I wouldn't adopt the rule for normal life too.

Thinking of last-minute advice I can give my wife before she takes an algebra placement exam and I end up with: if they ask you to divide by a complex-valued number, refuse.

My wife's intro-to-algebra online course has reached the topic of factoring differences-of-cubes polynomials, bringing to me memories of the time I needed to factor a differences-of-cubes polynomial.

My wife's taking an intro-to-algebra online course and got marked off for what seemed like an ambiguous definition. I'm curious what people's intuitions are.

Question was: what is the factoring of the term 4x²y?

Rabbit, rabbit.

Our pet rabbit looks so *affronted* when I swap her litter bin out for the clean one, though.