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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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6403168 No.6403168[DELETED]  [Reply] [Original]

>> No.6403220

0/10

Also, hi, /g/

>> No.6403265
File: 33 KB, 317x466, OP.jpg [View same] [iqdb] [saucenao] [google]
6403265

>>6403168

>> No.6403274

In the 0.00000000001% chance that OP is even remotely serious

Complex numbers can be formally defined as the field R[x] of polynomials modulo the ideal generated by x^2+1.

We refer to them as "numbers" in order to make them more intuitive. The word "imaginary" is a funny historical quirk, which has somehow survived over the centuries, despite there being nothing imaginary about them at all.

>> No.6403278

I stopped caring about physics when I was introduced to the concept of dark matter. What a crock of shit. If the universe can only be understood by inventing intangible bullshit that can't exist, like some kind of physics deity, then you are fucking wrong and the physics is flawed. Same for quantum bullshit that basically say "the cat is both alive and dead". That's what the physics said transcribed to words but god forbid if i you suggest there's some underlying factor we don't know about instead of assuming the world is like fucking dice and the teacher word mark me wrong.

Physics is logical and never lies my ass. Physics is just as flawed as any other human construct.

>> No.6403316

>>6403168

I stopped caring about philsophy when I was introduced to the concept of consciousness. What a crock of shit. If the self can only be understood by inventing intangible bullshit that can't exist, like some kind of philosophical deity, then you are fucking wrong and the philosophy is flawed. Same for qualia bullshit that basically say "things only exist in your senses". That's what the philsophy said transcribed to words but god forbid if i you suggest there's some underlying factor we don't know about instead of assuming the world is like fucking nonexistent and the teacher word mark me wrong.

Philosophy is logical and never lies my ass. Philosophy is just as flawed as any other human construct.


(this post will get more replies because philosophy fags from /lit/ can't take a joke)

>> No.6403319

How would you solve sqrt(-1) without imaginary numbers? Can it be done? Would whoever solved it get a prize?

>> No.6403327

what could possibly disqualify i from being a number? does it have any qualities that really make it different from any other definition of number?

>> No.6403331

>>6403327
>what could possibly disqualify i from being a number?

It's a letter

>> No.6403342

>>6403168
>Set answer in the real numbers
Cant be solved because of how the real numbers are defined
>Expand real numbers to include a definition of imaginary numbers
Lets get rolling!

TL;DR Maths is based on agreed systems of axioms and definitions

>> No.6403350
File: 47 KB, 533x518, math deity.jpg [View same] [iqdb] [saucenao] [google]
6403350

>like some kind of Math Deity
I like the sound of that.

>> No.6404320

I hate the mysticism around imaginary and complex numbers.

"Ooh, this number doesn't exist because it's imaginary! And complex numbers, so complex and edgy you wouldn't understand them, wow!"

It should have a more boring name, like "vertical numbers" and complex numbers could be "rectangular numbers".

>> No.6404339

>>6404320
Not an issue. They are called complex because they consist of two simple number parts. Just because you have some associations with the term doesn't mean it doesn't totally make sense and needs to be changed.
Changing names because of feelings never leads to meaningful results.

>> No.6404373

>>6403331
Kek'd

>> No.6404377
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6404377

>>6404320
well arent you so smart and lucid and cool.
By isis this board is awful.

>> No.6404378
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6404378

maximum overtroll

>> No.6404401

I stopped caring about /sci/ when I was introduced to the concept of EK. What a crock of shit. If your slow board problems can only be solved by inventing a person that can't possibly exist, like some kind of shitposting deity, then you are fucking wrong and the board is flawed. Same for raddit that basically says, "le cake is whatever le cake is". That's the meme transcribed to words but god forbid if i wrote it down in english instead of the ancient meme runes the mods would downvote me.

Memes are funny and cakes always lie my ass. Memes are just as flawed as any other human construct.

>> No.6404407

>>6404401
hello newfriend, I'm sorry you missed out on the glory days of /sci/

>> No.6404409

>>6404401
please stop saying bad things about ek she doesnt deserve it she was a nice person let her be in peace

>> No.6404411

>>6404409
shit last time I saw you post was like 3 years ago, have you been here the whole time I wasn't lurking?

>> No.6404542

>>6403168
what a faggot
http://www.youtube.com/watch?v=oxF5VQSA4Hw

>> No.6404555
File: 51 KB, 1280x800, negative.png [View same] [iqdb] [saucenao] [google]
6404555

>>6403168

>> No.6404556

>>6403168
OP confirmed for bad at math.
Enjoy using a calculator for basic arithmatic the rest of your life.

>> No.6404581

>>6404555
Negative numbers can be modeled be debt, or really anything where you set "zero" to a level you can go under.

Give me an example modeling complex numbers in the real world.

>> No.6404583

>>6404581
Literally all of electrical engineering. Now fuck off you shit.

>> No.6404597
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6404597

>>6404581

>What is RF electronics.
>What is phase space.

>> No.6404622

>>6403168
Descartes pls go

>> No.6404633
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6404633

>>6404622

>> No.6404636

>>6404597
More info pls

>> No.6404644

OP, please realize that imaginare numbers make exactly as much sense as negative numbers.

In fact, there is absolutely no difference behind the reason negative numbers and imaginary numbers exist. Negative numbers are exactly as "imaginary" as imaginary numbers are.

>> No.6404649
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6404649

>>6404581
What's the first thing you see when you read this equation?

>> No.6404655

>>6404649
>quantum mechanics
>real world example

Choose one.

>> No.6404669

>>6404655
It's the most accurate way to describe the physics behind quantum processes. Just like Newtonian Physics is the most accurate way to describe normal matter.
Adding two (non-existent) numbers in your head is the most acurate way to count your change.

>> No.6404674
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6404674

>>6404669
>It's the most accurate way to describe the physics behind quantum processes.
Hahaha, oh wow, my fucking sides. Are you in high school or are you trolling?

>Just like Newtonian Physics is the most accurate way to describe normal matter.
Are you fucking kidding me?

>> No.6404680

>>6404655
>real world example
>frying burgers and buying stuff at the grocery store
The "real" world involves a bit more than that, you know.

>> No.6404686

>>6404680
But it doesn't involve "imaginary" numbers. Because they are not real.

>> No.6404690

>>6404686
Quantum mechanics is part of the real world.

>> No.6404701

>>6404690
The real world works irregardless of whether you can describe it mathematically.

>> No.6404702
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6404702

>>6404581

Computer Science guy here.
We use them in Quaternions ( a vector composed of imaginary numbers ) for world transformations and rotating spacial systems about an arbitrary axis.
Quaternions are also far more dynamic, they are easier to work with and make things like the gimbal lock problem impossible.
Without imaginary numbers, we wouldn't have video games or physics simulations work nearly as fast as they do.

>> No.6404709
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6404709

>>6404702
>Computer Science guy here.
This is where I prepared my sides for maximum lel.

>We use them in Quaternions
Hahahahaha. Comedy gold. If he asked for a real life example of negative numbers, I bet you would of said "we use them in complex numbers".

>a vector composed of imaginary numbers
This is so wrong, yet so funny. My abs are tearing apart.

>Without imaginary numbers, we wouldn't have video games
Anyone who isn't a sefl-proclaimed "CS guy" would see this as an argument _not_ to use imaginary numbers.

>> No.6404708

>>6404581
http://en.wikipedia.org/wiki/Electrical_impedance

>> No.6404712

>>6404701
I don't think the real world works regarding if we can describe it mathematically.

That seems pushing it.

>> No.6404714

>>6404701
So your point is:

>Give me an example modeling complex numbers in the real world.

>Well, you don't NEED to model real world behavior

>> No.6404717

>>6404339
He's clearly talking about people who create images like in the OP.

There are tons of people who think like that.

I don't know why you think he's projecting.

>> No.6404721

>>6404702
I would like a good reference on this. I know a bit about it, but intend to learn more.

Do you have suggestions?

>> No.6404724

>>6404721
Why don't you fucking google the wikipedia?

>> No.6404735

>>6404721
google is your friend.
"quaternions in video games"
"quaternions in physics simulators"
Those bring some nice results. I learned about them when I was trying to make a game.

>>6404709
You sound like a troll. You're trying too hard.

>> No.6404734

>>6404724
Already did. Looking for more depth.

>> No.6404741

>>6404735
Sounds like a troll??

WTF was your first clue? This entire thread is a troll. Congrats on picking up on that.

>> No.6404746

>>6404741
This guy >>6404721 seems genuine.
People can learn even if the thread is terrible. Actually, this is how we turn it into a thread with substance. Let's just ignore the shitposters and continue.

>> No.6404832

>>6404701
>irregardless
KEK

>> No.6404841

>>6404686
"Imaginary numbers" are very real. It's just a poor name choice.

>> No.6404914

>>6404735
He's right though. You clearly know dick about math or computer science and only think you do because you browsed some wikipedia articles while shitposting in AGDG over what language was best.

>> No.6405135

>>6404701
Can you please tell me how it works if it doesn't work mathematically?

>> No.6405159

>>6403319
What is this bullshit? You can't define root-1 any better than you can define 2 in simpler terms. i is just a solution to the equation 0=x^2+1

>> No.6406610

>>6405159
2 is twice the multiplicative identity. In the right systems, S(1) or S(S(0)).
Sqrt is not a particularly well behaved function.