this post was submitted on 14 Jul 2025
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Science Memes

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[–] laserm@lemmy.world 25 points 6 days ago (3 children)

Why would a mathematician use j for imaginary numbers and why would engineer be mad at them?

[–] CyanideShotInjection@lemmy.world 24 points 6 days ago (1 children)

The only thing I can think of is that the OP studied electrical engineering at some point. But it's a 4chan story so probably fake anyway.

[–] dandelion@lemmy.blahaj.zone 5 points 6 days ago

fake and gay?

[–] prex@aussie.zone 10 points 6 days ago

I think it might be the wrong way around: Engineers like to use j for imaginary numbers because i is needed for current.

[–] AlboTheGuy@feddit.nl 8 points 6 days ago

Mathematicians are taught to be elastic with notation, because they tend to be taught many different interpretations of the same theory.

On the other hand engineers use more strict and consistent notation, their classes have a more practical approach.

Using the same notation makes it faster to read and apply math, a more agile approach helps with learning new theories and approaches and with being creative.

[–] jsomae@lemmy.ml 1 points 6 days ago

My initial thought was that it's surprising that the engineer is using i whereas the mathematician is using j. But I know some engineers who are hardcore in favour of i. No mathematicians who prefer j though. So if such an engineer were dating a mathematician of all people who used j, I could see that being ♠ .

[–] answersplease77@lemmy.world -5 points 1 week ago (2 children)

so after he angered his bf he got fucked as in trouble with him or sex? raped? wtf lol

[–] jyl@sopuli.xyz 15 points 6 days ago (1 children)

Wtf mate, nothing that serious. Anon teased him and the score was settled when they did the thing later that night.

The story looks pretty fake and gay anyway, but it's more wholesome than your idea.

[–] Neverclear@lemmy.dbzer0.com 8 points 6 days ago

hate fuck:

An act of aggressive sex with someone as if they had no respect for the person as an equal human being, regardless if they actually do, or not. Hate fucking usually entails aggressive, sometimes violent, degrading, and humiliating sexual acts and behaviors perpetrated by an aggressive party onto a submissive, solely in the interest of the aggressor's own pleasure and amusement, and without regard for the submissive party's enjoyment or well being.

Unlike rape, hate fucking is a form of consensual sex where the submissive party has agreed (for whatever reason) to accept the treatment and behavior of the aggressor.

Though unlike proper BDSM, the submissive party has not previously discussed boundaries, likes or dislikes, and doesn't necessarily enjoy all, or even any of the treatment they receive.

https://www.urbandictionary.com/define.php?term=hate+fuck

[–] Zagorath@aussie.zone 296 points 1 week ago (15 children)

Fake and gay.

No way the engineer corrects the mathematician for using j instead of i.

[–] LeFrog@discuss.tchncs.de 53 points 1 week ago (7 children)

As an engineer I fully agree. Engineers¹ aren't even able to do basic arithmetics. I even cannot count to 10.

¹ Except maybe Electrical engineers. They seem to be quite smart.

[–] boonhet@sopuli.xyz 46 points 1 week ago (2 children)

Engineer here, I can definitely count to 10 tho

0 1 10

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[–] gnutrino@programming.dev 33 points 1 week ago (1 children)

Electrical engineers are the ones that use j though (because i is used for current)

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[–] Hoimo@ani.social 39 points 1 week ago (3 children)

How do we know it's gay though? OP could be a girl (male)

[–] SippyCup@feddit.nl 59 points 1 week ago

Because it's 4chan. And there are no women on the Internet on 4chan

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[–] PM_ME_VINTAGE_30S@lemmy.sdf.org 148 points 1 week ago (5 children)

Wait bottom mathematican is using j=√-1 instead of i and not the engineer? Because I'm EE gang, and all my homies use j.

[–] GandalfTheDumb@lemmy.world 65 points 1 week ago (2 children)

That part also got me really confused. All the mathematicans I know use i while engineers use i or j depending on the kind of engineer. I've never seen a Pikachu engineer using anything other than j.

[–] Ganbat@lemmy.dbzer0.com 24 points 1 week ago

Pikachu engineer

That's a fucking favorite now. Keeping that in my back pocket.

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[–] wetbeardhairs@lemmy.dbzer0.com 40 points 1 week ago (1 children)

The fun starts when you study quaternions

i^2 = j^2 = k^2 = ijk = −1

[–] pticrix@lemmy.ca 32 points 1 week ago (9 children)
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[–] _stranger_@lemmy.world 87 points 1 week ago (2 children)
[–] burntbacon@discuss.tchncs.de 0 points 6 days ago

Thado-mathocist. The real chad all along.

It makes me wonder if somewhere out there in a multiverse, a community of lisping incels all collectively draw the chad wojak as as an aramaic looking dude.

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[–] ShinkanTrain@lemmy.ml 78 points 1 week ago (4 children)

Is anyone doing anything tonight?

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[–] lemmy_outta_here@lemmy.world 78 points 1 week ago (1 children)

I’m a mechanical engineering student with a math minor and I’m a switch so yeah, I’d take either side of this

[–] iAvicenna@lemmy.world 57 points 1 week ago* (last edited 1 week ago) (8 children)

operative?

Also mathematicians use i for imaginary, engineers use j. The story does not add up. I have never seen a single mathematician use j for imaginary.

[–] zeca@lemmy.eco.br 3 points 6 days ago

The associativity thing also doesnt make sense.

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[–] Kolanaki@pawb.social 47 points 1 week ago (3 children)

Me, a language/arts person: "Huh?"

[–] axEl7fB5@lemmy.cafe 21 points 1 week ago (2 children)
[–] lena@gregtech.eu 4 points 6 days ago

Fullstack dev here. "Huh?"

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[–] CosmicTurtle0@lemmy.dbzer0.com 33 points 1 week ago (1 children)

This is the kind of brat I can get behind. 😏

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[–] Almacca@aussie.zone 31 points 1 week ago

I have no idea what they're talking about, but I do love a happy ending.

[–] vivalapivo@lemmy.today 30 points 1 week ago (1 children)

As a physicist I can't understand why would anyone complain about a +jb or $\int dx f(x)$. Probably because we don't fuck

[–] RamblingPanda@lemmynsfw.com 21 points 1 week ago (5 children)

As a software dude I can see you wrote a regex, I just can't find out what you're trying to match.

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[–] OsrsNeedsF2P@lemmy.ml 27 points 1 week ago (2 children)

Better plot than 50 Shades of Grey

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[–] Phoenix3875@lemmy.world 24 points 1 week ago (3 children)

I think rather d/dx is the operator. You apply it to an expression to bind free occurrences of x in that expression. For example, dx²/dx is best understood as d/dx (x²). The notation would be clear if you implement calculus in a program.

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[–] edinbruh@feddit.it 22 points 1 week ago

Relationship goals

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