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Forum: The Classroom
Topic: anyone know how to...
started by: Dark Knight Bob

Posted by Dark Knight Bob on Aug. 21 2001,10:27

...derive ln(1-x)? i would put this in the geek forum but seeing as how i need the answer a.s.a.p i put it here. god damn referred coursework!

its to show a Maclaurin series so any higher derivatives of said equation would be helpful

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quote:
Violence isn't the problem... it's the solution.

< Where's your self re-cocking-spect >

Posted by CatKnight on Aug. 21 2001,10:48

it's the same as ln x but you replace the x terms with (1-x) terms. and if you don't know what the maclaurin series for ln x is then you're in some deep shit anyway.

Posted by beuges on Aug. 21 2001,11:21

ya, just substitute (1-x) with something like u or v or whatever, and then derive ln(u)

Posted by DeadAnztac on Aug. 21 2001,18:48

Sit on a spoon and spin.

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~Anztac [ I'm just this guy, you know? ]

Posted by LazyGit on Aug. 21 2001,18:50

Oh shit, I only learnt that about 4 months ago and it's nearly all gone due to celebrating the fact that I learnt the stuff and then managed to get a good grade in the exam.

Well, I could have done better if I'd revised.

Why the fuck have I decided to do Physics at University? I have a friend doing Surf Studies in Cornwall for three years. He has 8 hours of lectures a week. I shit you not. One 4 hour section is 'practical time'. That means surfing.

Bollocks.
cheers

Posted by Dark Knight Bob on Aug. 21 2001,18:52

yeah i know what the maclaruin series is just the question wants me to prove its what its supposed to be. just needed to check with someone i wasnt fuckign up a question right from the start

cheers

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quote:
Violence isn't the problem... it's the solution.

< Where's your self re-cocking-spect >

Posted by CatKnight on Aug. 21 2001,19:38

You can prove it by using sin x and sin (2x) as an example. It's just like that.

Posted by CatKnight on Aug. 21 2001,19:39

quote:
Originally posted by shifter:
CarKnight, I salute you....for actually being useful.

thanks, too bad we can't say the same about you.

Posted by Dark Knight Bob on Aug. 21 2001,19:41

quote:
Originally posted by LazyGit:
Oh shit, I only learnt that about 4 months ago and it's nearly all gone due to celebrating the fact that I learnt the stuff and then managed to get a good grade in the exam.
Well, I could have done better if I'd revised.
Bollocks.
cheers

well i lernt the stuff 4 months ago didnt get a good grade and have to resit 2 exmas and do this crappy coursework ahhhh god!!!

The previously invincible DKB has lost his extreme blagging skillz!!!

EDIT : GAH why did i fall asleep in class...oh yeah cos the fucknuts at admin decided to make the maths lessons occour at 1pm every friday and go for 4 hours straight! thats why and also decided to put 1/2 our physics lessons at 5-7pm in the evening ahhh fucking bastards!!!

------------------

quote:
Violence isn't the problem... it's the solution.

< Where's your self re-cocking-spect >

This message has been edited by Dark Knight Bob on August 22, 2001 at 02:54 PM

Posted by shifter on Aug. 22 2001,05:59

CarKnight, I salute you....for actually being useful.

Posted by Dark Knight Bob on Aug. 22 2001,19:10

it took me 1.5 fucking hours but i did the question. took me 20 minutes fo paniccing and mental sketches to realise that the factorials cancel down to a whole number. but shit i did it. now all i gotta do is show that the fucking thing converges t0
-1<x<1.