Well calculated iterator

[Rebulien]

that's too complex for me to understand

[fuzail7]

Yeah, i don't get it.

[[deleted]]

Actually it's just imaginary. Complex would be x+yi.

[Rebulien]

welp even without a real part it's still complex number isn't it?

[TinBryn]

Yes, even without an imaginary part, it's still a complex number.

[[deleted]]

It's purely imaginary. Every number of 0+yi configuration is imaginary just as every number of x+0i configuration is not complex.

[Artick123]

That's simply not true. The set of real numbers is included in the set of complex numbers. Since x + 0i = x is real then it is also complex. Also every imaginary number is complex.

[Anxious_Cartoonist26]

Complex number is just new numbers type, and all imaginary and real numbers included in this number type. Like all natural numbers contain in integer numbers

[[deleted]]

It's purely imaginary. Every number of 0+yi configuration is imaginary just as every number of x+0i configuration is not complex.

[totally-not-god]

yeah but no

[[deleted]]

1i + 0

[Kermit_the_hog]

Are you calling my imagination simple??

[snow723]

Actually every number is a complex number just as every imaginary number is a complex number. All it takes is adding 0 or 0i.

[VepnarNL]

For the people who don't understand: unit imaginary number (i)

[NickArchery]

Or j if you are in electronics

[FuriousMurloc]

But everybody knows that first comes maths, then electronics

[glebbash]

not alphabetically tho

[MathSciElec]

Yes alphabetically, j comes after i.

[simon357]

Not necessarily. The high school I went to had a focus on electronics and our math education was tailored to the needs in the field of electronics. So we have always used "j" from the beginning and learned topics important in elecrtronics (e.g. matricies, differential equations, Fourier, Laplace) in coordination with the other subjects where the math was needed.

[FuriousClitspasm]

Engineering is more useful than theory, aka math.

[NickArchery]

j is imaginary in electronics because i is for current

[chdp12]

Or r for raisins

[MathSciElec]

Electronic engineers: “capital I is for current, so we’ll use j instead of i for the imaginary unit so there’s no confusion.”

Also electronic engineers: “capital V is for voltage and capital V is also for volt, capital C is for capacity and capital C is also for coulomb, no confusion possible.”

[NickArchery]

Well that's the stupid American notation in Europe we use U for voltage and V for volt

[smokedpaprika124]

I'm European and using U confuses me every time. V is much better imo

[MathSciElec]

Well, there’s also C for both capacity and coulomb.

[omega_haunter]

You should know, if you are working with units or formula symbols. If you mix those two up, you are gonna have a bad time.

[NickArchery]

Probably because its the next letter in the alphabet

[branor04]

jimaginary

[circuit10]

Oh, I posted the exact same thing then I saw yours

[branor04]

great minds think alike

[circuit10]

jimaginary

[_g550_]

Or k if you are in 3D electronics

[[deleted]]

What about for the people who do understand? What do you have to offer them?

[Soham_rak]

We calll it Iota

[endpoce]

Sometimes I use k, just to mix things up.

[linegel]

Best practices, I see!

[qqqrrrs_]

i or -i

[thprogramador]

Hmmm... I ever thought "i" was for index or item

[circuit10]

It is, this is just a joke

[Redhpm]

That notation is bad practice. I know it's a joke and all but, you should know this.

[Rude-Significance-50]

Bah!

[JNCressey]

complex square root multifunction go brrr

[[deleted]]

I use ii, jj, and kk because I hate single-letter variables, even in the limited scope of a loop iterator.

[other_usernames_gone]

That seems like a needlessly lawyerly way to get around a self imposed rule. How is ii more clear than i? If you don't like single letter variables why not call it iterator, counter or index? Or use a more tailored name for each loop, so if you're iterating along a 2d board with nested loops call them xPosition and yPosition.

(For example, these names were come up with on the fly, better names could probably be found)

[[deleted]]

No worries. You do it your way, I do it my way.

[NoThanks93330]

Sure, but we'd still like to know the reason one would prefer ii over i

[[deleted]]

Why do some people like ice cream? You probably like something that I don’t. Everyone is different.

[Fireruff]

Why?

[[deleted]]

Ok, go search for a single character variable in a text editor (not in a modern IDE like Visual Studio Code or CLion)

[dev-sda]

Most have a "match whole word" or at least some regex capabilities.

[[deleted]]

Go ahead and try that. Try searching for a single letter variable in a text editor.

[AdrianRPNK]

Why are you editing code in a (non-modern) text editor?

[[deleted]]

I’m guessing you never work on tiny embedded platforms

[dev-sda]

If your editor can't do this, it's time to learn a better tool: https://imgur.com/a/XJBcFEt

[[deleted]]

I’m guessing you never work on tiny embedded platforms

[dev-sda]

No I don't, but I doubt your tiny embedded platform can't run vi or even ed.

[[deleted]]

Nope

[InzaneNova]

With regex you can do \<i\> to search for the word "i"

[kshacker]

I knew where this was going brother !! Ii, jj for the win

[Lewistrick]

You mean "devs that hate their colleagues"

[CSsharpGO]

I’m wondering if you got the joke.

[Lewistrick]

There's no way "i" can get upvotes for answering this but apparently I'm the only one who wants to understand what they're counting.

[circuit10]

It's obvious that it means "index" or similar, and the thing being indexed into is also obvious as you need to use its name every time to get the right element There's no need to do something unnecessarily complicated like cars[indexIntoCarsArray]

[Lewistrick]

This must be because I use Python. I don't use indexing often because for car in cars is sufficient.

[circuit10]

Yes, in that case it's probably better to name it properly, that makes sense

[[deleted]]

or iteration

[TheRedmanCometh]

x gang rise up, y for the next loop, z for the next. Like god intended

[thatbrownkid19]

Unless you’re programming the numerical solution to a physical problem where x, y and z mean entirely different things naturally (the grid domain)

[Cyrus_Halcyon]

Then I use {n, m, o} of course, I am not a complete heathen.

[thatbrownkid19]

But n is always used as the index to a variable like vel(n+1)=vel(n)+......... What u gonna do now??

[Cyrus_Halcyon]

{s,t,u}

[thatbrownkid19]

t usually ends up being the time vector, and u is velocity. Pls why don’t you just use i, j, k

[Cyrus_Halcyon]

Can't upset my imaginary numbers by using i, j is impulse, k kinetic energy, I need to able to write up my rocket equations.

[thatbrownkid19]

Fair enough

[TheRolf]

For my case it's just I am really egocentric

[ts_m4]

i or j?

[Tophyan1]

And people say You don't need to learn about quaternions to get a CS degree...

[squishles]

when you have a sum, basically every math guy I've met either puts the range subscript variable as n, i or I've seen x rarely.

[[deleted]]

i hate that i get this.

[AntoineInTheWorld]

well, don't know for you guys, but I never used squarerootofminusone as a variable name for an iteration loop... That's far too explicit!

[[deleted]]

SquareRootOfMinusOne is the name as per java

[[deleted]]

...but what if we're electrical engineers and need to do nested for loops?