I think 4chan is trolling.

[IceBergSLiM]

bajillioninity

 

[AeroEngy]

As mentioned quaterions and don't forget octonions:

• Scalars are represented by 1 number.
• Complex numbers are represented by 2 numbers (1 real and 1 imaginary).
• Quaternions are represented by 4 numbers (1 real and 3 imaginary).
• Octonions are represented by 8 numbers (1 real and 7 imaginary).

“The real numbers are the dependable breadwinner of the family, the complete ordered field we all rely on. The complex numbers are a slightly flashier but still respectable younger brother: not ordered, but algebraically complete. The quaternions, being noncommutative, are the eccentric cousin who is shunned at important family gatherings. But the octonions are the crazy old uncle nobody lets out of the attic: they are nonassociative.” - John Baez

 

[sonicdrummer20]

∞i/thread

 

[AstroManLuca]

i + 1

 

[busydude]

i + 1

That is a complex number.

 

[AstroManLuca]

That is a complex number.

okay, then a zillion

 

[Away]

Over 9000

 

[fire400]

look for credibility with links and supporting details.

if all else, tell them to become a bot for an entire day to exhaust them before they return after their next break up with their fake-online-girl-friend...

haR - haR - argH -

 

[alkemyst]

In all the years I studied and worked on electronics I never used imaginary numbers when looking at circuits.
What the hell do you need it for?

not college level I take it...lolz.

 

[UncleWai]

They ask for a number and you noobs keep giving out alphabets, good job.

 

[El Guaraguao]

b0000000000000ring

 

[SunnyD]

As mentioned quaterions and don't forget octonions:

• Scalars are represented by 1 number.
• Complex numbers are represented by 2 numbers (1 real and 1 imaginary).
• Quaternions are represented by 4 numbers (1 real and 3 imaginary).
• Octonions are represented by 8 numbers (1 real and 7 imaginary).

The only thing about quaternions (and beyond) is that each imaginary number is equivalent to i anyway... so it's only really one number, but imaginary, so it's not.

 

[AyashiKaibutsu]

...in the programming world, especially.

Outside of that, 'x' and 'n' are used more often.

 

[Farmer]

A fantastic look into the idiocy of 4chan. This is not a troll. This is just retarded.

 

[Paul98]

-2 can be spilt into -1 and 2.. Sqrt of -1 = i and sqrt of 2.. Is well ... You know that..

Are -1 2 and -2 different numbers? I think so

are you trying to tell me sqrt(-1) and sqrt(-2) are the same number?

 

[Mr. Pedantic]

...in the programming world, especially.

Outside of that, 'x' and 'n' are used more often.

lol

 

[Farmer]

The only thing about quaternions (and beyond) is that each imaginary number is equivalent to i anyway... so it's only really one number, but imaginary, so it's not.

A quarternion is a vector in a 4D vector space, so you can say the quaternions are the set of all such vectors. Since there this space is closed under the operation of quarternion multiplication, and a few other things, it's a group. And like anything mathematical, it really doesn't "mean" anything, until you find an application.

In my life, I've only ever used it to represent rotations in 3D space. It avoids the sines and cosines in rotation matrices.

 

[Gibson486]

In all the years I studied and worked on electronics I never used imaginary numbers when looking at circuits.
What the hell do you need it for?

It's used on anything that is not linear. In other words, anything that is not a steady DC circuit.

In circuits, it is used for the transient response. In DC, we do not care about the transient because it eventually hits steady state so quickly. If you do anything analog, you need to know imaginary numbers.

 

[busydude]

Are -1 2 and -2 different numbers? I think so

How can -1 * 2 and -2 be different?

 

[Farmer]

It's used on anything that is not linear. In other words, anything that is not a steady DC circuit.

In circuits, it is used for the transient response. In DC, we do not care about the transient because it eventually hits steady state so quickly. If you do anything analog, you need to know imaginary numbers.

Not necessary, only because it is pretty much the de facto standard taught in school. You can definitely do all that sine addition without using complex numbers, it's just more aggravating. This has more to do with Euler's identity than the claim that "i=sqrt(-1)," which, by itself, is kind of useless.

 

[alkemyst]

How can -1 * 2 and -2 be different?

I think it has to do with certain calculators and negation...I have heard that arguement come up before (again incorrectly).

 

[MovingTarget]

As mentioned quaterions and don't forget octonions:

• Scalars are represented by 1 number.
• Complex numbers are represented by 2 numbers (1 real and 1 imaginary).
• Quaternions are represented by 4 numbers (1 real and 3 imaginary).
• Octonions are represented by 8 numbers (1 real and 7 imaginary).

:hmm:

Also, lolz on the quote you posted.

 

[Hacp]

Its i, not j. If I see someone who thinks j is imaginary, I'll choke them! DIE.

 

[OCGuy]

Eleventeen

 

[Gibson486]

Not necessary, only because it is pretty much the de facto standard taught in school. You can definitely do all that sine addition without using complex numbers, it's just more aggravating. This has more to do with Euler's identity than the claim that "i=sqrt(-1)," which, by itself, is kind of useless.

nah man....euler's is the best. It lets you do the laplace intergation with the actual integral. no need to memorize that stupid table. But yeah, you are right...it's pretty much useless to anyone that does not do DSP work or very complex RLC networks.