Sometimes I just feel the need to explain to someone how to find the volume of a decored apple.
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Sometimes I just feel the need to explain to someone how to find the volume of a decored apple.
I can honestly say I've never had any desire to learn calculus.
I already know Calculus. :chimp:
Yeah, I know Calculus too. The question is, do you "know" Calculus.Quote:
Originally Posted by Lets Gekiga In
By know I mean have an intimate relationship with.
By intimate relationship with I mean sechually.
Yeah I said it... I have sechs with Calculus.
what people don't often know is that calculus is easy.
most people just get tripped up in the algebra of it all.
I can do a mean differential equation, and find a few derivatives if need be.
I'm out of practice now, and mostly doing z-scores, mean and Standard Deviation formula's. (Stats)
I wish I was "intimate" with both these maths, it just takes lots of practice.
hook me up Curt. I never did quite retain anything from Calculus. It was a bad time for learnign in college.
Calc I, II, III, and Differental Equations
fucking useless now
I had to take calculus last semester and found it to be one of the easier maths I have taken.
I know more Calculus than 99.99% of your asses. :chimp:
Ditto, as with 90% of what else I learned in school.Quote:
Originally Posted by Big Shady
I've got a full 4 years degree on Mathematics and I'm finishing my PhD in Statistics. You all think you know Calculus, but she's been cheating on you with me.
The other 10% was learning how to properly apply lipstick in the girls bathroom?Quote:
Originally Posted by Abasuto
You mean I could have learned that in school ?Quote:
Originally Posted by Wes
I got all the way up to Analytical Geometry in College (at University of Michigan), was a Thermo Chem major, finished about half of my requirements (and was doing very well), then decided to study English and Fine Art.
lol
I use it often. :pQuote:
Originally Posted by Big Shady
Jagging off doesn't count. ha ha! :chimp:Quote:
Originally Posted by Magnaflux
no.Quote:
Originally Posted by gamejunkie
3 credits of Math required in high school...
1st year = Algebra 1 (I went to a private school, we were not as smrt as the public school kids)
2nd year = Basic Math :kekeke:
Got kicked out of the current high school...
Next high school where all my credits were transferred over...
3rd year = Basic Math
The fact remains that I know more Geometry than 99.999% of all y'all bitches...
What is the golden ratio? :smirk:Quote:
Originally Posted by TonK
Quote:
Originally Posted by Amano Jacu
I vote Amano Jacu the official Rainman of NG.com forums.
Yeah, yeah....uuhmm counting cards. Ut oh underwear on the highway.
Wapner at 3, yeah gotta watch Wap... Wapner at 3.
I'ts (1+sqrt(5))/2. Notice that our paper sheets here have the golden ratio proportion in the series DIN-A3, DIN-A4, etc.Quote:
Originally Posted by Magnaflux
:envy:Quote:
Originally Posted by Amano Jacu
I just finished my 3rd exam of calculus 3. I knew how to do all the double and triple integrals for area, volume, and center of mass, but my problem was trying to keep the different approaches to the problems seperate. After doing problems the entire day yesterday (oh was I behind...) I think I made at least a B. :chimp:
I'm not sure what I have to take after this, but I know one class is Differential Equations. What exactly do you do in this course?
I'm actually thinking about minoring and then "maybe" finishing up a major in mathematics when I have time. What's the general flow of courses after Cal 3 and Differential Equations?
Isn't Statistics doing free body diagrams? Please tell me there's no rotational motion of torque. God I hate that.
:spock:
Statics uses free body diagrams heavily, not Statistics. Statistics just tells you how to lie scientifically. :chimp:Quote:
Originally Posted by gamejunkie
DIff EQ was a real pain for me, mainly due to murderkill algebra.
I'm in eng. so the flow after that is statics/dynamics/thermo/strenght of mat'l/ etc...
In differential equations you learn how to solve them, they are equations where you have to find the function that satisfies them, involving it's derivative, like for example:Quote:
Originally Posted by gamejunkie
f'(x)=f(x)
that has the solution f(x)=C*exp(x)
You can study properties of the solution without even knowing it, and numerical methods of approximating it.
In statistics there shouldn't be any complicated integrals. Actually most important distributions like the Gaussian can't be explicitly integrated so you need to use tables or a calculator/computer to work with it.
my algebra skills > your algebra skills
fuck math, as good as you are a calculator will own your ass for free, so what's the fucking point? you aren't shit! :kekeke:
That's like saying a CPU controlled character can beat you in any fighting game...Quote:
Originally Posted by DashK
Maths are not only solving an operation numerically. Another problem is that kids nowadays are so used to using calculators, that their mental operation skills are so shitty that for example you can give them the wrong amount of money in a return and they won't even notice it...
You have to know what you're entering into the calculator and how to do it. :kekeke:Quote:
Originally Posted by DashK
I'll stay away from "Statics" if I can. I still need to look at my class outlines to see what I need to take, but do you think it should be similar even though you're in mechanical and I'm in electrical?Quote:
Originally Posted by Magnaflux
Is the C the constant that you would have after integrating, or is it different? Exp(x) is e^x right?Quote:
Originally Posted by Amano Jacu
Yes, exp(x)=e^x. That constant means that for any value of it you get a solution, most diff equations have a space of solutions (there's only one solution if you specify the value of the solution in one point). You can say you get that constant after integrating the diff equation, because this one is solved like this:Quote:
Originally Posted by gamejunkie
f'(x)/f(x)=1, so integrating both parts against dx:
log(f(x))=x+C and applying exp:
f(x)=exp(x+C)=exp(C)*exp(x)
that exp(C) is what I called C, it doesn't matter the name as it's just a constant. The only problem is that it should be only positive, but a negative value also works as solution. That's because I assumed f(x) positive to be able to do the log, but it's not needed so both positive and negative solutions work.
Quote:
Originally Posted by DashK
I'm glad you're a dumbass and won't be building any bridges or structures that human lives depend on. :)
You solve differential equations. :kekeke:Quote:
Originally Posted by gamejunkie
But seriously, that's what you do - learn techniques to solve DE's. You may do a little modeling, or a little bit on numerical solutions, but most of the course will likely involve methods of solving ordinary differential equations exactly.
You'll probably start taking more theoretical courses, such as analysis, abstract algebra, maybe topology, etc. That's when the real fun starts. :chimp:Quote:
Originally Posted by gamejunkie
No, that's mechanics. Statistics is much worse. :kekeke:Quote:
Originally Posted by gamejunkie
Calc was fun while it lasted, but Physics is thousands of times better.
@dashk, most calc can be done without the use of a calculator, at least I never HAD to use one(except for multivariable calc).
Hell yeah, me too. I have a very hard time with math but I find statistics to be interesting and I actually get it.Quote:
Originally Posted by Curt
For me, physics was the class that should have been lots of fun, but ended up being a chore.Quote:
Originally Posted by iamyagami22
WTF? woops.
Physics was the most fun I have ever had learning anything.Quote:
Originally Posted by Magnaflux
Why was it a chore, did you not do any work?
I don't know how to do divisions anymore.
I hate Statistics. I'm not really interested in how people sample and poll and stuff. Atleast that's all we seem to be talking about. It is rewarding to look at the little text under the USA Today polls and understand when they say margin of error: +/-4 percentage points.Quote:
Originally Posted by Spike
I freaking loved Geometry for some reason though...I think it's because I was actually good at it.
I'll pray for you tonight.Quote:
Originally Posted by Tristesse
Probably because my teachers and professors were/are hosers. Tie in a shitty book full of errors and you've a blueprint for success.Quote:
Originally Posted by iamyagami22
I'm in my stat class right now. :chimp:
yeah right.Quote:
Originally Posted by Spike
Engineering4Lif3!!!!Quote:
Originally Posted by Big Shady
Translation, me too. :chimp:
Each desk has a computer for using excel but I like it here better.Quote:
Originally Posted by iamyagami22
I'm with you there. As a matter of fact that's probably why I hate Physics (my instructor was completely worthless)... On top of that, I'll probably have to take Physics 2 under her husband. :oh_no: I guess it's a good thing I already know pretty much everything we'll be talking about.Quote:
Originally Posted by Magnaflux
I love Calculus partly because of my instructor actually teaching, which seems to be a rare commodity with lower level classes.
Amano Jacu, thanks for the explanation! That doesn't seem too hard, but then again that's first day material, right?
PS: Can anyone tell me where the functions e^(x), log(x), and ln(x) come from? I know how to use them, but it seems like they just appeared out of nowhere...
LOLQuote:
Originally Posted by JHendrix
I don't get it dude, we learned all this Math, then we get jobs and its like "Hey, its done for you fucktard. Just plug and chug."
I don't totally ignore all my Calc, but I don't use it like crazy. Matrix math, I do alot of that. Learning Fractacl Geometry next semester for grad school, fucking awesome :buttrock:
No thanks. The final math class I ever took was pre-cal/trig my junior year of HS.