this post was submitted on 19 Jun 2025
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Math Memes

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Memes related to mathematics.

Rules:
1: Memes must be related to mathematics in some way.
2: No bigotry of any kind.

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[–] stebo02@sopuli.xyz 125 points 3 days ago
[–] vaguerant@fedia.io 150 points 3 days ago (11 children)

I understand why this is wrong (order of operations dictates the division happens first, so it's really 25 - 1 = 24), but why is it funny? I don't mean "This isn't funny," I think I'm just missing the joke.

[–] Thekingoflorda@lemmy.world 393 points 3 days ago* (last edited 3 days ago) (17 children)

4! Is meant to be 4 factorial. 4! = 4 x 3 x 2 x 1 = 24

[–] vaguerant@fedia.io 119 points 3 days ago

Aha! Got it, thank you so much.

[–] Eyedust@lemmy.dbzer0.com 40 points 3 days ago

And here I was thinking I was still decent at math. I got bamboozled...

[–] jaybone@lemmy.zip 14 points 3 days ago

Or if you don’t know order of operations, then you probably also don’t know factorials, so 20 / 5 = 4

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[–] ArrantKnave@lemmy.world 19 points 3 days ago

4 factorial

[–] bleistift2@sopuli.xyz 17 points 3 days ago

The exclamation point denotes the factorial function. 4! = 4 ⋅ 3 ⋅ 2 ⋅ 1

[–] Zorque@lemmy.world 14 points 3 days ago

I see no one has explained yet, so I'll give it a shot. He is excited about math, and that needs to be encouraged.

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[–] blind3rdeye@lemm.ee 24 points 3 days ago* (last edited 3 days ago)

This is quite possibly the best maths joke I've ever seen.

[edit] I guess it still can't beat the 'be rational' / 'get real' one.

[–] faythofdragons@slrpnk.net 28 points 3 days ago

You got the wrong symbol in the headline, it should be >3

[–] bleistift2@sopuli.xyz 81 points 3 days ago

Best math meme so far.

[–] pixeltree@lemmy.blahaj.zone 30 points 3 days ago (2 children)

Comment section full of people looking for an opportunity to argue

[–] abbotsbury@lemmy.world 49 points 3 days ago (1 children)
[–] petrol_sniff_king@lemmy.blahaj.zone 19 points 3 days ago (2 children)

Yes it is

Wait, will this be the 5-minute or the half hour?

[–] pinball_wizard@lemmy.zip 5 points 2 days ago (1 children)

"I'm sorry, I cannot continue to argue, unless you pay."

[–] nieminen@lemmy.world 4 points 2 days ago

You're not arguing, you're just being contrary!

[–] SirQuack@feddit.nl 4 points 2 days ago

Hah, joke's on you, I just need 4!

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[–] HEXN3T@lemmy.blahaj.zone 48 points 3 days ago (1 children)

4! = ...Wait, that's literally the point of the post this time

[–] four@lemmy.zip 28 points 3 days ago (3 children)

Unexpected expected factorial

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[–] itisileclerk@lemmy.world 5 points 2 days ago

007 will never get this wrong, it's 4, 24.

[–] j4k3@lemmy.world 29 points 3 days ago (2 children)

ASCII hack failure of language. Even in mathematics, ! has multiple meanings like with Boolean NOT. We need a science, math, and language reformation to remove non intuitive narcissistic names, and implied contextual meanings.

[–] davidgro@lemmy.world 20 points 3 days ago* (last edited 3 days ago) (3 children)

You might find Lojban interesting if you are not already aware. (I haven't tried to learn it myself, I just know it exists)

[–] MBM@lemmings.world 6 points 3 days ago (1 children)

I've never seen ! used for boolean NOT in maths, just ¬. I think ! is something programming languages went for because it's easier to type. That said, screw (a, b). Is that a (coordinate) pair, an interval, an inner product, some secret fourth thing? Who knows!

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[–] faltryka@lemmy.world 26 points 3 days ago

Ok this is funny

[–] gofsckyourself@lemmy.world 20 points 3 days ago

Thank God this meme is muted

[–] ShadowRam@fedia.io 20 points 3 days ago (1 children)
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