this post was submitted on 13 Dec 2025
384 points (97.3% liked)

Science Memes

17774 readers
2444 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago
MODERATORS
 
all 36 comments
sorted by: hot top controversial new old
[–] FiskFisk33@startrek.website 73 points 1 week ago* (last edited 1 week ago) (3 children)

What they actually see:

convolution
cross product
dot product
multiplication

[–] taiyang@lemmy.world 27 points 1 week ago

The irony is that this meme works in reverse for that. At least, in order of mind blowing as I refreshed my memory, it goes multiplication (very easy), dot (scalars easy), cross (vectors medium) and convolution (integrals hard).

In fact, I never did the later two but convolution looks fun.

[–] Ziglin@lemmy.world 7 points 1 week ago (1 children)

I see multiplication in code, Cartesian product, multiplication, multiplication.

I might not count as a mathematician though. If the * was supposed to be convolution the a should have been cursive.

[–] driving_crooner@lemmy.eco.br 3 points 1 week ago (1 children)

In latex if you are using * you better mean convolution

[–] Ziglin@lemmy.world 1 points 1 week ago

Yes (actually \ast though?), but unless you're a maniac in LaTeX latin letters referring to variables in a math environment are cursive (actually a math font I think). Therefore if I am reading a single sentence that may or may not have been made using TeX I tend towards not if variables are in a standard font.

[–] betanumerus@lemmy.ca 5 points 1 week ago* (last edited 1 week ago) (1 children)

No. If a is a scalar, which it clearly is, it's all multiplication. And there is no reason to use any of the first three. We say "three apples", not "three x apples".

[–] FiskFisk33@startrek.website 4 points 1 week ago* (last edited 1 week ago)

hurr durr maybe it's a vector in ℝ

[–] FuglyDuck@lemmy.world 21 points 1 week ago (2 children)

it's funny, because I always imagined them giggling about typing 8008135 into calculators.

[–] jbrains@sh.itjust.works 27 points 1 week ago (1 children)
[–] FuglyDuck@lemmy.world 6 points 1 week ago (1 children)

Naw. Mathmaticians are frequently dyslexic.

It’s grammarians doing it backward!

[–] mercano@lemmy.world 6 points 1 week ago

Ah, that’s how we wound up with reverse Polish notation.

3 a *

Excuse me, but self respecting mathematicians calculate it properly.

Now let's see, it was Dolly Parton had...

[–] driving_crooner@lemmy.eco.br 12 points 1 week ago
[–] hperrin@lemmy.ca 10 points 1 week ago (2 children)
[–] angrystego@lemmy.world 6 points 1 week ago

Shaka, when the walls fell.

[–] akilou@sh.itjust.works 10 points 1 week ago
[–] someacnt@sh.itjust.works 10 points 1 week ago (1 children)
[–] sundray@lemmus.org 10 points 1 week ago

Math articles on Wikipedia really need a prerequisite section.

[–] Kraiden@piefed.social 8 points 1 week ago (3 children)

madness. How am I supposed to know if 36 = 36 or 36 = 8?

[–] lvxferre@mander.xyz 8 points 1 week ago* (last edited 1 week ago) (1 children)

Numbers are all made up stuff, and they're all the same. Here, lemme prove it; let a=b, and...

a² = ab             // multiplying both sides by "a"
2a² = a²+ab         // adding a² to both sides
2a²-2ab = a²-ab     // subtracting 2ab from both sides
2(a²-ab) = 1(a²-ab) // isolating (a²-ab)
2 = 1               // dividing both sides by (a²-ab)

From there you can prove any number is any number. 36=36 or 36=8 or 36=π.

the trickIf a=b, you can't divide both sides by (a²-ab), because it's a division by zero.

[–] psud@aussie.zone 3 points 5 days ago (1 children)

Lots of zeros in that due to a=b (before looking at the spoiler text)

[–] lvxferre@mander.xyz 3 points 5 days ago

Bingo. The whole "a=b" is just a distraction to hide it, otherwise as soon as you hit the third step you cancel both out, and end with 0=0.

[–] Ephera@lemmy.ml 4 points 1 week ago (1 children)

Do you mean 36 = 18 there? Otherwise, I'm very confused. 😅

[–] mhi@lemmy.world 19 points 1 week ago

Doesn't make a difference as 18 = 8

[–] DacoTaco@lemmy.world 3 points 1 week ago

Because the things like 3a are only for variables, not numbers.

[–] Jerkface@piefed.social 8 points 1 week ago

0a^0^ + 3a^1^

[–] HeyThisIsntTheYMCA@lemmy.world 6 points 1 week ago (1 children)
[–] dreadbeef@lemmy.dbzer0.com 13 points 1 week ago (1 children)

i just want to know how to write it as screaming

[–] psx_crab@lemmy.zip 5 points 1 week ago

b

Because 3a = b

[–] IEatDaFeesh@lemmy.world 5 points 1 week ago

Chess Grandmasters: a3

[–] TheTechnician27@lemmy.world 3 points 1 week ago* (last edited 1 week ago) (1 children)

FYI for the alt text: that's Vince McMahon.

[–] Ephera@lemmy.ml 3 points 1 week ago

Yeah, when I found the meme template, it did say that, too, but I wasn't sure if that information is actually helpful to someone reading alt text. Personally, I only know the guy from the memes. 😅

[–] jbrains@sh.itjust.works 2 points 1 week ago