This site is no longer active and is available for archival purposes only. Registration and login is disabled.

Frustrating Math Problem!


Postby Kzinti » May 7, 2004 @ 11:27pm

Last edited by Kzinti on May 7, 2004 @ 11:29pm, edited 1 time in total.
Kzinti
pm Member
 
Posts: 3238
Joined: Jan 13, 2002 @ 5:23am


Postby James S » May 7, 2004 @ 11:29pm

<img src="http://home.comcast.net/~sonne/james/tag.gif">
James S
pm Insider
 
Posts: 17064
Joined: Jan 12, 2002 @ 2:33pm
Location: Lexington, KY


Postby Kzinti » May 7, 2004 @ 11:29pm

Kzinti
pm Member
 
Posts: 3238
Joined: Jan 13, 2002 @ 5:23am


Postby Brig » May 7, 2004 @ 11:42pm

Truth is a possession.
User avatar
Brig
<font color=purple>Bombastic Brig</font>
 
Posts: 2769
Joined: Oct 26, 2003 @ 10:57am
Location: Washington


Postby Jadam » May 7, 2004 @ 11:55pm

Last edited by Jadam on May 7, 2004 @ 11:59pm, edited 1 time in total.
User avatar
Jadam
I'm a STAR!
 
Posts: 3245
Joined: Apr 9, 2002 @ 7:24pm
Location: Stony Brook, NY


Postby Jadam » May 7, 2004 @ 11:56pm

User avatar
Jadam
I'm a STAR!
 
Posts: 3245
Joined: Apr 9, 2002 @ 7:24pm
Location: Stony Brook, NY


Postby Kzinti » May 8, 2004 @ 12:10am

Kzinti
pm Member
 
Posts: 3238
Joined: Jan 13, 2002 @ 5:23am


Postby James S » May 8, 2004 @ 12:20am

<img src="http://home.comcast.net/~sonne/james/tag.gif">
James S
pm Insider
 
Posts: 17064
Joined: Jan 12, 2002 @ 2:33pm
Location: Lexington, KY


Postby Jadam » May 8, 2004 @ 12:29am

User avatar
Jadam
I'm a STAR!
 
Posts: 3245
Joined: Apr 9, 2002 @ 7:24pm
Location: Stony Brook, NY


Postby James S » May 8, 2004 @ 1:46am

I'm going to assume you mean that it is centered at zero, which would make it a MacLaurin series. In which case the series for sin(x) in Series summation form is represented by:

Sigma from n=0 to infinity of ((-1)^n){[x^(2n+1)]/(2n+1)!}
(that explanation mark is a factorial)

Taking the integral of that summation gives you:
Sigma from n=0 to infinity of ((-1)^n){[x^(2n+2)]/[(2n+2)(2n+1)!]}

Then you simply plug in 10pi and subtract that from the summation with 0 plugged in:
Sigma from n=0 to infinity of ((-1)^n){[(10pi)^(2n+2)]/[(2n+2)(2n+1)!]} MINUS Sigma from n=0 to infinity of ((-1)^n){[0^(2n+2)]/[(2n+2)(2n+1)!]}

The zero cancels out all of the terms in the second summation after the integration so it is irrelavent.

You didn't give me an error bound so to what nth degree would you like me to go out? Although I'm not going to waste my time, I have two finals tomorrow.

Regardless, the problem in question that Warren is asking about is an indefinite integral. It has no endpoints to plug in. Which means it's incredibly simple to simply add +1 and divide by the exponent.
<img src="http://home.comcast.net/~sonne/james/tag.gif">
James S
pm Insider
 
Posts: 17064
Joined: Jan 12, 2002 @ 2:33pm
Location: Lexington, KY


Postby Warren » May 8, 2004 @ 3:46am

Warren
pm Insider
 
Posts: 3140
Joined: Mar 13, 2001 @ 5:49pm


Postby James S » May 8, 2004 @ 4:13am

<img src="http://home.comcast.net/~sonne/james/tag.gif">
James S
pm Insider
 
Posts: 17064
Joined: Jan 12, 2002 @ 2:33pm
Location: Lexington, KY


Postby RChickenMan » May 8, 2004 @ 3:06pm

User avatar
RChickenMan
pm Member
 
Posts: 825
Joined: Jan 1, 2004 @ 9:56pm


Postby damian » May 8, 2004 @ 3:42pm

damian
pm Insider
 
Posts: 3960
Joined: Sep 3, 2002 @ 7:59pm
Location: Acton, MA (home), NYC (school)


Postby RChickenMan » May 8, 2004 @ 4:09pm

User avatar
RChickenMan
pm Member
 
Posts: 825
Joined: Jan 1, 2004 @ 9:56pm


PreviousNext

Return to Anything Discussion


Sort


Forum Description

Post all off-topic messages here, almost anything goes.

Moderators:

Dan East, sponge, David Horn, Kevin Gelso, RICoder

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

cron