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 08-26-2007, 01:04 AM #41 Zackie EL UG's Machinist     Join Date: Mar 2006 Location: Where?! Wroooong. Both of you. Well, you could do it darkstar's way, but that's too complicated. Last edited by Zackie EL : 08-26-2007 at 01:08 AM.
08-26-2007, 01:06 AM   #42
guywithguitar
Reggie stirred you, sir

Join Date: Jul 2003
Location: Rochester NY.
Quote:
 Originally Posted by darkstar2466 Yea, you should hit these pretty soon. The math series I'm taking does this first, to prepare for E&M, I guess. What math are you taking?

Actually, I'm in this really interesting theoretical math series that starts from the very beginning (The axioms: commutativity, additive identities, etc) and proves everything up to linear algebra and multivariable calculus from there. It's a tiny bit behind subject wise, but you get a ton more understanding and mathematical thinking ability. This semester'll be mainly linear algebra. What subject would the line integral fit into?

Edit: It looks like no one got my Euler's identity joke before .

Last edited by guywithguitar : 08-26-2007 at 01:08 AM.

08-26-2007, 01:14 AM   #43
darkstar2466
Fly, you fools

Join Date: Mar 2007
Location: (-∞, ∞)
Quote:
 Originally Posted by guywithguitar Actually, I'm in this really interesting theoretical math series that starts from the very beginning (The axioms: commutativity, additive identities, etc) and proves everything up to linear algebra and multivariable calculus from there. It's a tiny bit behind subject wise, but you get a ton more understanding and mathematical thinking ability. This semester'll be mainly linear algebra. What subject would the line integral fit into? Edit: It looks like no one got my Euler's identity joke before .

Line integrals come with multivariable calc. You'll learn Fubini's and Stroke's theorems along with that. I'm doing Linear Algebra this quarter as well, then onto Differential equations after. Did you end up doing any discrete math in your series?

EDIT: ololol, I missed the Euler's identity joke. I skimmed through it too fast to see the e^(i*pi)
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 Originally Posted by denizenz I'll logic you right in the thyroid.

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Last edited by darkstar2466 : 08-26-2007 at 01:16 AM.

 08-26-2007, 01:14 AM #44 Zackie EL UG's Machinist     Join Date: Mar 2006 Location: Where?! It's 21.07181307 units^2 Using Hero's formula which is The square root of s(s-a)(s-b)(s-c), and you find s by doing s=1/2(a+b+c)
08-26-2007, 01:14 AM   #45
bigwillie
HAS QUIT

Join Date: Dec 2005
Location: Santa Barbara, California
^^^^
Quote:
 Originally Posted by guywithguitar Yay Math!!!!!!!11!11-e^(i*pi)!!

I didn't even see that before. I just skimmed over and thought it was keyboard smashing.

And Zackie El, I give up. I'm giving the "Summer brainfart" excuse on this one.

What's the answer? I did it several times and kept getting 21.07.

EDIT: I did get it! My I just can't read my own writing. My ones look like sevens.

08-26-2007, 01:17 AM   #46
Zackie EL
UG's Machinist

Join Date: Mar 2006
Location: Where?!
Quote:
 Originally Posted by bigwillie 21.07 I used the Law of Cosines to solve for angle A, (56.436), then solved for the height using sine equals opposite over hypotenuse. Then just basic A=b*h/2. EDIT: I wrote 27.07, but meant 21.07. I can't even read my own writing.

Well, that is right. I didn't see your edit, so sorry

Hero's formula is easier, though. I have to use it a lot being a machinist.

 08-26-2007, 01:18 AM #47 Hoser Registered User     Join Date: Sep 2005 I did it the same way as bigwillie and got 21.07 square units. Same answer, just different ways of getting there. I did a LOT of trig last year so that's the first thing I thought of.
 08-26-2007, 01:19 AM #48 Zackie EL UG's Machinist     Join Date: Mar 2006 Location: Where?! Should I quit doing problems, or keep going?
08-26-2007, 01:20 AM   #49
bigwillie
HAS QUIT

Join Date: Dec 2005
Location: Santa Barbara, California
^ I completely forgot about that formula. I remember seeing once or twice, but I never really went over to thoroughly.

Quote:
 Originally Posted by Zackie EL Should I quit doing problems, or keep going?

I'm going to be logging off pretty soon, but I'll welcome any future problems. It will definitely help get me warmed up before I have to go back to school.

Last edited by bigwillie : 08-26-2007 at 01:22 AM.

08-26-2007, 01:21 AM   #50
guywithguitar
Reggie stirred you, sir

Join Date: Jul 2003
Location: Rochester NY.
Quote:
 Originally Posted by darkstar2466 Line integrals come with multivariable calc. You'll learn Fubini's and Stroke's theorems along with that. I'm doing Linear Algebra this quarter as well, then onto Differential equations after. Did you end up doing any discrete math in your series? EDIT: ololol, I missed the Euler's identity joke. I skimmed through it too fast to see the e^(i*pi)

A fair amount, yeah. We used logical quantifiers all of the time in proofs, and we learned weak and strong induction. The series is almost completely focused on proofs, so you're gonna need some discrete. I'm going to be studying discrete on my own this semester though, because I need it for computer science, and I don't feel like actually taking the class . I'll just be taking the final so I can officially take classes that require it as a prerequisite.

08-26-2007, 01:23 AM   #51
darkstar2466
Fly, you fools

Join Date: Mar 2007
Location: (-∞, ∞)
I took discrete math for CS and I ended up getting a C- in the class, barely passing it. That's because I don't give a sh*t about discrete math and I didn't study it. I get the material though. Again, ololol, I think we're doing the same exact thing in college.
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Quote:
 Originally Posted by denizenz I'll logic you right in the thyroid.

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 08-26-2007, 01:58 AM #52 guywithguitar Reggie stirred you, sir     Join Date: Jul 2003 Location: Rochester NY. Physics/CS double major?
08-26-2007, 02:24 AM   #53
darkstar2466
Fly, you fools

Join Date: Mar 2007
Location: (-∞, ∞)
Quote:
 Originally Posted by guywithguitar Physics/CS double major?

I'm doing Electrical Engineering/CS double major. Close enough though, because I'm gonna be taking a buttload of physics classes too. I <3 physics.
__________________
Quote:
 Originally Posted by denizenz I'll logic you right in the thyroid.

Art & Lutherie

 08-26-2007, 03:18 AM #54 Hells_Bell wat     Join Date: Apr 2006 Location: Israel Maths! __________________ I love trannys too..
 08-26-2007, 04:26 AM #55 cammo_1234 UG Newbie     Join Date: Sep 2005 Location: Someone's house... confused and with no memory of the night before Wow I kinda didn't expect this thread to really get anywhere! lol it's good to see there are people on UG who actually have a brain in their skull that's used for more than barrel rolls and icyhot... guys..... i'm impressed! I'm taking Specialist Mathematics (top maths subject in Australia), Physics, and Chemistry in my final year of school, so I hope I can be of some help... but it looks like some of you guys are smarter than me.... so i might have to resort to coming back to my own thread for help!!!1 __________________ LollipopSkeletonsLollipopSkeletonsLollipopSkeletonsLollipopSkeletons LollipopSkeletonsLollipopSkeletonsLollipopSkeletonsLollipopSkeletons
 08-26-2007, 07:36 AM #56 porcupineoris Custom User Title     Join Date: Sep 2004 you guys talking about multivariate calculus and linear algebra- what age are you? I always assume people on here are of school age, but I studied that stuff last year at uni. I guess you're all at uni/college?
 08-26-2007, 10:15 AM #57 Zackie EL UG's Machinist     Join Date: Mar 2006 Location: Where?! Meh, I'm 16. A junior in high school.
 08-26-2007, 10:18 AM #58 abcdboy Registered User   Join Date: Jun 2006 How do you find vertical asymptotes with just looking at the equation? Assuming the equation has one of course. __________________ Gear... Peavey 5150, Squier, Ibanez RG2EX2, Yamaha F150, Ibanez RT150, MXR noisegate
 08-26-2007, 10:20 AM #59 Guitardude19 UG's Mad Scientist     Join Date: Jan 2006 Location: In Your Mind, Stealing Your Brain Cells. Gah.... Making The Science Thread Obsolete are we threadstarter? (see sig) __________________ All religions are bollocks. Christianity: Virgin Birth, Water into wine; Its like Harry Potter but it causes genocide and bad folk music. Sat in a lab, curing diseases.
08-26-2007, 10:22 AM   #60
Zackie EL
UG's Machinist

Join Date: Mar 2006
Location: Where?!
Quote:
 Originally Posted by abcdboy How do you find vertical asymptotes with just looking at the equation? Assuming the equation has one of course.

Basically, if it comes down to division by zero, that means there's a vertical asymptote.

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