Matt Macauley
@visualalgebra.bsky.social
Associate Professor (Clemson) | AIMS Lecturer (South Africa) | Author: "Visual Algebra" (forthcoming) | YouTuber | First Gen | Homesteader | Dad to Ida & Felix | 🔱
Annoyingly, this works on my iPhone but not on MacOS (laptops).
If you're on a Mac add "Hungarian QWERTY" in Settings --> Keyboard. Hitting CTRL-SPACE will toggle b/w US (in my case) and HU layouts. Press the "[" key for ő and the \ key for ű. Then press CTRL-SPACE to toggle back.
If you're on a Mac add "Hungarian QWERTY" in Settings --> Keyboard. Hitting CTRL-SPACE will toggle b/w US (in my case) and HU layouts. Press the "[" key for ő and the \ key for ű. Then press CTRL-SPACE to toggle back.
January 14, 2026 at 4:26 PM
Annoyingly, this works on my iPhone but not on MacOS (laptops).
If you're on a Mac add "Hungarian QWERTY" in Settings --> Keyboard. Hitting CTRL-SPACE will toggle b/w US (in my case) and HU layouts. Press the "[" key for ő and the \ key for ű. Then press CTRL-SPACE to toggle back.
If you're on a Mac add "Hungarian QWERTY" in Settings --> Keyboard. Hitting CTRL-SPACE will toggle b/w US (in my case) and HU layouts. Press the "[" key for ő and the \ key for ű. Then press CTRL-SPACE to toggle back.
Lazy Christmas Eve, waiting for Santa with my first grader on my lap, engrossed in a Rubik’s cube.
December 25, 2025 at 3:44 AM
Lazy Christmas Eve, waiting for Santa with my first grader on my lap, engrossed in a Rubik’s cube.
I’d like to nominate Madagascar and Socotra (Yemen).
December 25, 2025 at 12:24 AM
I’d like to nominate Madagascar and Socotra (Yemen).
Despite being a lifelong Seahawks fan, I’ll present the following, as a potential counterexample.
@minakimes.bsky.social
@minakimes.bsky.social
December 23, 2025 at 8:44 PM
Despite being a lifelong Seahawks fan, I’ll present the following, as a potential counterexample.
@minakimes.bsky.social
@minakimes.bsky.social
Obligatory post
December 19, 2025 at 4:56 AM
Obligatory post
My first grader is VERY amused by the score of this game. 🙄
December 19, 2025 at 2:15 AM
My first grader is VERY amused by the score of this game. 🙄
Ooh, I feel this. And also this 👇
December 18, 2025 at 8:07 PM
Ooh, I feel this. And also this 👇
That play should ONLY be watched in the Monsters Inc altcast. Nothing else would do it justice.
December 9, 2025 at 4:25 AM
That play should ONLY be watched in the Monsters Inc altcast. Nothing else would do it justice.
Penultimate harvest of 2025. The last 12 lbs of kiwi, 24 lbs of Yuzu, and a handful of flying dragon citrus. The colors look a little off because this picture was taken 12 minutes after sunset.
November 28, 2025 at 11:08 PM
Penultimate harvest of 2025. The last 12 lbs of kiwi, 24 lbs of Yuzu, and a handful of flying dragon citrus. The colors look a little off because this picture was taken 12 minutes after sunset.
More fall fruit that I’m growing. Fun facts: the kiwis can’t be picked until the first freeze (last week). The Yuzu has survived single-digit (F) temperatures.
November 17, 2025 at 4:51 AM
More fall fruit that I’m growing. Fun facts: the kiwis can’t be picked until the first freeze (last week). The Yuzu has survived single-digit (F) temperatures.
Fall in my orchard. Flying dragon hardy citrus in front of Fuyu persimmon fall foliage.
November 11, 2025 at 3:42 AM
Fall in my orchard. Flying dragon hardy citrus in front of Fuyu persimmon fall foliage.
I got *a lot* of positive feedback about this sign tonight from (parents of) trick-or-treaters.
November 1, 2025 at 2:05 AM
I got *a lot* of positive feedback about this sign tonight from (parents of) trick-or-treaters.
October 29, 2025 at 3:26 AM
Looking for suggestions! I rarely watch mainstream movies, but I enjoy international films, especially from non-Western cultures. But I don’t know how to find the best ones.
Do you have any favorites? Here are some I’ve watched in the past few years.
Do you have any favorites? Here are some I’ve watched in the past few years.
October 26, 2025 at 3:17 AM
Looking for suggestions! I rarely watch mainstream movies, but I enjoy international films, especially from non-Western cultures. But I don’t know how to find the best ones.
Do you have any favorites? Here are some I’ve watched in the past few years.
Do you have any favorites? Here are some I’ve watched in the past few years.
The only other one I can remember.
October 25, 2025 at 11:15 PM
The only other one I can remember.
This is the perfect example of the combination of grocery price increases + tariffs.
Friends in the Commonwealth, how much would you expect to pay for this 250g jar?
Friends in the Commonwealth, how much would you expect to pay for this 250g jar?
October 24, 2025 at 1:32 PM
This is the perfect example of the combination of grocery price increases + tariffs.
Friends in the Commonwealth, how much would you expect to pay for this 250g jar?
Friends in the Commonwealth, how much would you expect to pay for this 250g jar?
I'm sure this will be controversial, because it's a pro-AI post on a notoriously anti-AI site (BlueSky).
I'm almost 45 and have never written a UNIX shell script. So I asked ChatGPT for help, and it gave me the following in a matter of seconds. It's really good at this sort of thing.
1/2
I'm almost 45 and have never written a UNIX shell script. So I asked ChatGPT for help, and it gave me the following in a matter of seconds. It's really good at this sort of thing.
1/2
![ChatGPT's result of the following prompt: Part 1/2:
"Can you give me a UNIX bash shell script for compiling all files like math8530_slides-n.tex (n=1,2,3,4,5,6,7), and twice each so the page number counts works, and then copying each pdf to a file named math8530_slides-n_h.pdf, and them removing all .aux and .log files?"
Nice and straightforward — below is a small, safe bash script that does exactly what you asked:
loops n=1..7,
for each math8530_slides-n.tex runs pdflatex twice (so page numbers / references resolve),
copies math8530_slides-n.pdf → math8530_slides-n_h.pdf,
removes the corresponding .aux and .log files for that base name,
prints helpful messages and continues on errors (doesn't abort the whole run).
Save this as e.g. build_slides.sh, chmod +x build_slides.sh, and run ./build_slides.sh in the directory containing the .tex files.
#!/usr/bin/env bash
set -u
# Build math8530 slides 1..7: run pdflatex twice for each, copy pdf to _h version,
# and remove .aux and .log files for each.
#
# Edit PDF_ENGINE if you prefer xelatex/lualatex or latexmk.
PDF_ENGINE=pdflatex # change to xelatex or lualatex if desired
TRIES=2 # number of times to run the engine for each file
for n in {1..7}; do
base="math8530_slides-${n}"
texfile="${base}.tex"
pdffile="${base}.pdf"
outcopy="${base}_h.pdf"
if [[ ! -f "$texfile" ]]; then
echo "Skipping: $texfile not found."
continue
fi
echo "=== Building $texfile ==="
success=true
for i in $(seq 1 $TRIES); do
echo " [$i/$TRIES] Running $PDF_ENGINE on $texfile ..."
# -interaction=nonstopmode prevents interactive prompts; -halt-on-error makes the run exit nonzero on errors
"$PDF_ENGINE" -interaction=nonstopmode -halt-on-error "$texfile" > /dev/null 2>&1
rc=$?](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:yxyo3tr72b3e2caxy5qcidep/bafkreibvgcwhriwp76dwuidshkd34zzymfdbm56dequfowccorpxvr435i@jpeg)
![ChatGPT's result of the following prompt: Part 2/2:
"Can you give me a UNIX bash shell script for compiling all files like math8530_slides-n.tex (n=1,2,3,4,5,6,7), and twice each so the page number counts works, and then copying each pdf to a file named math8530_slides-n_h.pdf, and them removing all .aux and .log files?"
if [[ $rc -ne 0 ]]; then
echo " ERROR: $PDF_ENGINE failed on pass $i for $texfile (exit code $rc)."
success=false
break
fi
done
if [[ "$success" = true ]]; then
if [[ -f "$pdffile" ]]; then
echo " Copying $pdffile -> $outcopy"
cp -f "$pdffile" "$outcopy"
else
echo " WARNING: Expected $pdffile but it was not produced."
fi
else
echo " Skipping copy/cleanup for $base due to compilation error."
continue
fi
# remove only the aux and log files for this base name
for ext in aux log; do
f="${base}.${ext}"
if [[ -f "$f" ]]; then
rm -f "$f"
echo " Removed $f"
fi
done
done
echo "=== Done ==="
Notes / options
If you prefer latexmk -pdf -silent (it handles reruns automatically), replace the compile loop with latexmk -pdf -silent "$texfile".
The script currently silences pdflatex output (> /dev/null 2>&1) to keep the terminal tidy; remove that redirection if you want to see full compile logs while it runs.
It removes only *.aux and *.log corresponding to each math8530_slides-n file (safe). If you want to remove more auxiliary extensions, add them to the for ext in ... list.
Want a variant that aborts on the first error (instead of continuing) or one that uses latexmk? I can paste that too.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:yxyo3tr72b3e2caxy5qcidep/bafkreicx7fnb5py3h775gdj4dads5mnfwltjybsz5yjc2kfpeh4hj4kubu@jpeg)
October 24, 2025 at 1:26 PM
I'm sure this will be controversial, because it's a pro-AI post on a notoriously anti-AI site (BlueSky).
I'm almost 45 and have never written a UNIX shell script. So I asked ChatGPT for help, and it gave me the following in a matter of seconds. It's really good at this sort of thing.
1/2
I'm almost 45 and have never written a UNIX shell script. So I asked ChatGPT for help, and it gave me the following in a matter of seconds. It's really good at this sort of thing.
1/2
This pretty much sums it up. 😭
October 23, 2025 at 3:08 PM
This pretty much sums it up. 😭
I was hoping to watch the game with my almost 7-year-old daughter, but she has other plan. Keeping me company while she does math. 🤷♂️
October 21, 2025 at 12:18 AM
I was hoping to watch the game with my almost 7-year-old daughter, but she has other plan. Keeping me company while she does math. 🤷♂️
One of the silver linings of being a lifelong fan of one of the least successful baseball teams is that I had COMPLETELY forgotten how stressful this is! 😩
October 20, 2025 at 10:59 PM
One of the silver linings of being a lifelong fan of one of the least successful baseball teams is that I had COMPLETELY forgotten how stressful this is! 😩
Oh sorry, just looked it up. He played in 1 game and had 0 plate appearances. Point still stands.
October 20, 2025 at 6:00 AM
Oh sorry, just looked it up. He played in 1 game and had 0 plate appearances. Point still stands.
At home celebrating my son Felix’s 3rd birthday, and hoping that the Mariners will clinch their first ever World Series berth later this evening. #TridentsUp! 🔱⚾️
October 20, 2025 at 12:10 AM
At home celebrating my son Felix’s 3rd birthday, and hoping that the Mariners will clinch their first ever World Series berth later this evening. #TridentsUp! 🔱⚾️
I just don’t see Seattle fans booing after an injury. I assumed that they simply couldn’t see the replay and how bad it looked, but I’ve since seen a lot of comments like this from people who were at the game. Makes more sense, especially since there were tons of Jays fans there. Occam’s razor.
October 19, 2025 at 1:24 AM
I just don’t see Seattle fans booing after an injury. I assumed that they simply couldn’t see the replay and how bad it looked, but I’ve since seen a lot of comments like this from people who were at the game. Makes more sense, especially since there were tons of Jays fans there. Occam’s razor.