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[-] iAvicenna@lemmy.world 48 points 3 weeks ago* (last edited 3 weeks ago)

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.

[-] sartalon@lemmy.world 9 points 3 weeks ago

As an EE, I used both. Def not a mathematician though. Fuck that, I just plug variables into programs now.

[-] the_tab_key@lemmy.world 5 points 3 weeks ago

I have both mechanical and electrical backgrounds. MEs like I, EEs prefer j

[-] SanicHegehog@lemmy.world 4 points 3 weeks ago

imaJinary

TIL engineers can't spell for shit.

[-] zeca@lemmy.eco.br 3 points 3 weeks ago

The associativity thing also doesnt make sense.

[-] Unlearned9545@lemmy.world 2 points 3 weeks ago

Engineer here: mostly use i, but have seen j used plenty. First time I saw j used was by a maths professor.

[-] iAvicenna@lemmy.world 1 points 3 weeks ago* (last edited 3 weeks ago)

Interesting I never saw j from a maths person. Friends (from a decade ago!) in electronics eng dep said they use j because i was reserved for current. perhaps the latter depends on the department.

[-] jenesaisquoi@feddit.org 1 points 3 weeks ago

Cannot confirm, we always used i.

this post was submitted on 14 Jul 2025
786 points (100.0% liked)

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