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Author Topic: Maths  (Read 3811 times)

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Offline Hudzy

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Maths
on: September 22, 2002, 12:37:14 pm
Anyone here good at maths?

What would be the reciprocal of...

u + v
v

and also...

/a\ -1
\b/

ok, that last dodgy looking thing is a over b in brackets and the -1 bit is meaning the whole thing to the power of -1. I almost confused myself there.
  

Offline CP5670

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Maths
Reply #1 on: September 22, 2002, 12:42:16 pm
v / (u+v) and a/b; just flip them over. :D

Alright, let's keep this one open; it could become a useful thread.
« Last Edit: September 22, 2002, 12:48:03 pm by 296 »
 

Offline Hudzy

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Maths
Reply #2 on: September 22, 2002, 12:54:16 pm
What about to the power of minus 1 bit? Doesn't that change it in some mysterious way?
 

Offline CODEDOG ND

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Maths
Reply #3 on: September 22, 2002, 12:55:13 pm
/b / a\+1 ?
It's a fact.  Stupid people have stupid children.  If you are stupid, don't have sex.  If you insist on having sex.  Have sex with animals.  If you have sex with an animal.  Make sure the animal is smarter than you are.  Just encase of some biological fluke you and the animal have offspring, they won't be as stupid as you are.   One more thing.  Don't assume the animal is protected.  If the animal has a condom, or if female some interuterian device, insist they wear it.  Help stop this mindless mindlessness.  Keep your stupidty to yourself.  This message was brought to you by the Committee of Concerned Citizens that are Smarter than You are.
 

Offline diamondgeezer

Maths
Reply #4 on: September 22, 2002, 01:02:29 pm
Our resident physics b1tch, PJ, sez:

v/(u+v)
1/[(a/b)-1] = a/b
« Last Edit: September 22, 2002, 01:05:05 pm by 170 »
 

Offline CP5670

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Maths
Reply #5 on: September 22, 2002, 01:06:53 pm
Quote
What about to the power of minus 1 bit? Doesn't that change it in some mysterious way?


That means the reciprocal of the expression, so the reciprocal of a reciprocal is the same thing again.
 

Offline Kamikaze

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Maths
Reply #6 on: September 22, 2002, 01:09:47 pm
Hmmm... oh goody a math thread :D

Hey CP, are there any calculus/trigonometry texts that you'd recommend?
Science alone of all the subjects contains within itself the lesson of the danger of belief in the infallibility of the greatest teachers in the preceding generation . . .Learn from science that you must doubt the experts. As a matter of fact, I can also define science another way: Science is the belief in the ignorance of experts. - Richard Feynman
 

Offline CP5670

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Reply #7 on: September 22, 2002, 01:16:12 pm
I used one called Calculus with Analytic Geomtery (5th ed., author: Howard Anton, publisher: Wiley & sons) which I thought was a very well written text. At some 1200 pages it is quite long, but it covers not only normal first-year calculus, but all of multivariable calculus as well.
 

Offline Kamikaze

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Maths
Reply #8 on: September 22, 2002, 01:18:28 pm
Hmmm *me notes*
hopefully they have a copy at the university book store.... :)
Science alone of all the subjects contains within itself the lesson of the danger of belief in the infallibility of the greatest teachers in the preceding generation . . .Learn from science that you must doubt the experts. As a matter of fact, I can also define science another way: Science is the belief in the ignorance of experts. - Richard Feynman
 

Offline Hudzy

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Maths
Reply #9 on: September 22, 2002, 02:06:12 pm
:wtf: ...

Use the formula

1   =   1   +   1
     R                  R1                 R2

(That's all missalligned. When R1 and R2 are mentioned the 1 and the 2 are small ones to the bottom right of the letter)

to find R when R1 = 20 and R2 = 25.

And yes I have left this maths homework to the last minute. :nervous:
 

Offline CP5670

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Maths
Reply #10 on: September 22, 2002, 03:05:30 pm
100/9 :p

Quote
Hmmm *me notes*
hopefully they have a copy at the university book store.... :)


The edition I have is an older one, but there are many universities using newer versions, so it should be pretty easy to find.

I really want this one but look at that price! ridiculous... :mad:
http://www.amazon.com/exec/obidos/tg/detail/-/2881248640/qid=1032725333/sr=1-7/ref=sr_1_7/102-6697478-5305726?v=glance&s=books
 

Offline Hudzy

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Maths
Reply #11 on: September 22, 2002, 03:09:40 pm
Ok, how did you work that out? :confused: I might as well learn something. :D

Actually, I can see how that's done now. It must be getting late. :nod:
 

Offline DragonClaw

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Maths
Reply #12 on: September 22, 2002, 03:42:28 pm
1/R=1/20 + 1/25


1
- = .09
R

.09R=1
9R=100
R=100/9


This is easy stuff man, CP needs some problems that takes days to do :p
 

Offline Sandwich

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Maths
Reply #13 on: September 22, 2002, 03:46:21 pm
I think I'd rather speak politics. :doubt:
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Offline Hudzy

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Maths
Reply #14 on: September 22, 2002, 03:53:18 pm
Quote
Originally posted by RKIF-DragonClaw
This is easy stuff man, CP needs some problems that takes days to do :p


Yeah, I know. I'm just panicing at the moment and it's late and I suck at maths. Combine the three and well.
 

Offline Darkage

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Maths
Reply #15 on: September 22, 2002, 04:00:35 pm
raaaaaaghaahaaaaaaaaaaaaaaaaagrrrrrrraaaaaaaaaaa !!

*Nukes him self*

Ooooh...look at the prety light.
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Offline vyper

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Re: Maths
Reply #16 on: September 22, 2002, 04:01:59 pm
Quote
Originally posted by Hudzy
Anyone here good at maths?

What would be the reciprocal of...

u + v
v
 


Be this physics?
"But you live, you learn.  Unless you die.  Then you're ****ed." - aldo14
 

Offline Hudzy

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Maths
Reply #17 on: September 22, 2002, 04:16:09 pm
Maths. Number and algebra to be more precise.
 

Offline Galemp

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Maths
Reply #18 on: September 22, 2002, 04:36:27 pm
Wheeeeeee! A homework thread!

My math prof regularly leaves class to buy an ice cream bar then returns and eats it while teaching.

Oh, and for lining things up use the Code tag. Like so:

Code: [Select]
1 = 1 + 1
-   --  --
R   R1  R2
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Offline CODEDOG ND

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Reply #19 on: September 22, 2002, 09:55:32 pm
If a car is going 70 k/m and is 100 meters from a stop sign, and is decelerating at 4 m/s/s.  Is it able to stop within 100 meters?
It's a fact.  Stupid people have stupid children.  If you are stupid, don't have sex.  If you insist on having sex.  Have sex with animals.  If you have sex with an animal.  Make sure the animal is smarter than you are.  Just encase of some biological fluke you and the animal have offspring, they won't be as stupid as you are.   One more thing.  Don't assume the animal is protected.  If the animal has a condom, or if female some interuterian device, insist they wear it.  Help stop this mindless mindlessness.  Keep your stupidty to yourself.  This message was brought to you by the Committee of Concerned Citizens that are Smarter than You are.
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