SRL Archive - NOTA

I'm not really posting anything, as I more wanted to see what people had to share. :)

I'm not the smartest person ever, but I do like math, and I've been messing around with imaginary numbers and what not (just basic stuff, but I think it's pretty easy and fun), and I wanted to see what I've been missing out on. :) I'm sure people here know some stuff that they learned in higher level math classes that were treated as impossible in lower level math classes (such as the square root of a negative number being "impossible," yet it is possible with imaginary numbers).

Stuff like


please. :) I find that sort of math very interesting.

(Also, there's a thread about is interesting, but a simple explanation (as simple as you can make it without leaving anything important out) would be nice. :3)

Thanks, and post any fun/interesting math problems/aspects that I may not know! :D

I'm in algebra two, by the way. (I know it's a low math class :( I didn't have math for two years and you can't skip classes with how the school is doing it now.)

I'm in Algebra 2/ Trigonometry. I find the Trig part really interesting actually. You should check out the unit circle, trigonometric functions, and the like.

:p I have. (As long as you're talking about sines, cosines, tangents (and arcsine, arccosine, and arctangents)?)

Well, I can probably help with that. I have Calculus by the way :).

Anyway since you helped me out with scripting stuff I can do this part.

Right now we are in derivatives but i is really easy stuff. Since it is purely algebra its not that complicated and doesn't require much "abstract thinking" as my teacher would say :D.

Anyway i is like a constant. Its pretty much a number. Or at least it acts like one. So if you apply it to math its not that hard. If you are finding the Square Root of a negative number then you always get two answers :(. In some cases they take a lot of time. Which I just programmed an Imaginary Number finder in my calculator :). Anyway…

Here is an example…

If you have X^2=-1 (X is squared by the way)

you have to do this

Square Root(X^2) = Square Root(-1)

And you get X = ± Square Root(-1)

You can go way into depth in this but I am to lazy to look it up and stuff. Hehe anyway here's a link if you want more on imaginary numbers

http://www.themathpage.com/alg/complex-numbers.htm

:p Thanks, death, but I understand imaginary numbers. I was more wondering what sort of other things (I don't know things like e or logarithms or anything like that) there are that I might not know.

I think i is a pretty nifty concept. :)

if i had to do math for fun id just shoot myself in the head

Why?

And it's not like I have to do it. I just find it fun. I read text books for fun as it is, but most people think that's weird I guess. I also smoke weed for fun. :3

Go learn integrals…they have real world applications :P and they are great deals of "fun"

i^2 = -1
sqrt(-3) = sqrt(-1*3) = sqrt(i^2 * 3) = sqrt(i^2)*sqrt(3) = i*sqrt(3) :)
So basically just get the minus away and put an "i" in front of the sqrt

EDIT: Oh.. nvm.

^ wat

From: marpis
i^2 = -1
sqrt(-3) = sqrt(-1*3) = sqrt(i^2 * 3) = sqrt(i^2)*sqrt(3) = i*sqrt(3) :)
So basically just get the minus away and put an "i" in front of the sqrt

EDIT: Oh.. nvm.

iSquirt?

Gotta love math <3

I still don't really know complex numbers, I do know the rest and I have a solution for that eq'n that marpis posted.

:) I saw that, Nava.

Sqrt(-1) does not exist, it is your imagination! (i) ;)

:p Neither does the future, but we can still fathom it.

From: i luffs yeww
:p Neither does the future, but we can still fathom it.

Who said the future doesn't exist?

People. :3 Because it doesn't and can't. When it happens, it's not the future, it's the present.

If you want, look up on derivatives and integrals. They have multiple real world applications, and are very useful! Unfortunately, not the simplest things to explain over text 0_o

x] I had an hour long conversation with my friend Jordan at a party about how crazy awesome calculus is and how amazing it made life seem.

Math is simply amazing. I cant wait to get into Calculus 2 and 3 ^.^

From: marpis
i^2 = -1
sqrt(-3) = sqrt(-1*3) = sqrt(i^2 * 3) = sqrt(i^2)*sqrt(3) = i*sqrt(3) :)
So basically just get the minus away and put an "i" in front of the sqrt

EDIT: Oh.. nvm.

Those good old days. Bored out of my mind in Alg 2.

Have you tried out derivatives? Anti-derivatives? Sorry, super tired and only skimmed the thread. To be honest, if you want a leg up in calc, learn derivatives, trig functions along with unit functions, natural logs and logs (ln and e), and know how to take the derivatives of all those. That was about the first two months of boring college calc 1.

Uni calc 2 is where I learned the cool things. Solids of rotation, physical applications of calculus, and Taylor/Maclauren sums. Its all awesome and interesting… sadly, fun too.

id have to say that Taylor/Maclauren sums are NOT fun :P thats just me and about everyone in engineering at mac

From: Nava2
Uni calc 2 is where I learned the cool things. Solids of rotation, physical applications of calculus, and Taylor/Maclauren sums. Its all awesome and interesting… sadly, fun too.

Ohh, I was going to mention the solids of rotation and the volume of rotation, if those aren't the same things. Those are actually fun to do. Except if a trig function is involved, I hate those.

Learning how to solve trig equations by hand is usually a good time, if you know the unit circle well enough.

I think the most 'fun' but challenging thing that there is would be derivatives and anti-derivatives (integrals) because the underlying concepts behind it are quite simple and practical (like the derivative of displacement is velocity, the derivative of that is acceleration) but there are lots of different laws/rules to know (product rule, quotient rule, chain rule and such).

From: XcanadamanX
id have to say that Taylor/Maclauren sums are NOT fun :P thats just me and about everyone in engineering at mac

See, my friend told me that as well.. Idk if you guys do different stuff than we did, but ours weren't too bad. :<