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You are not logged in. #1 20070712 12:21:14
Integral MarathonHi y'all!! Rules are easy: person which solves an integral, may post the next one but he must have the approval of the person which proposed the previous integral if the answer is correct or not. Let's start with an easy one Compute Best regards! #2 20070712 13:00:07
Re: Integral Marathonsec(x)  tan(x) + x + C? A logarithm is just a misspelled algorithm. #4 20070712 17:37:34
Re: Integral MarathonLast edited by mikau (20070712 17:51:38) A logarithm is just a misspelled algorithm. #5 20070712 19:28:53
Re: Integral Marathon
Why not just differentiate back and check? Also, is there any need to use blatantly sexist language? #6 20070713 02:26:22
Re: Integral Marathon
Sorry, you have to show us your solution (I dunno what I was thinking that I didn't ask you that).
Show your solution too.
Well, actually when I was writing I didn't realize of that. #7 20070713 04:44:20
Re: Integral MarathonThats right, Jane. Good job! Looks like you're next as soon as you show your solution. Last edited by mikau (20070713 06:26:04) A logarithm is just a misspelled algorithm. #8 20070713 07:38:46
Re: Integral Marathon
http://www.xkcd.com/c145.html "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #9 20070713 08:49:35
Re: Integral MarathonThat last comic was superb! "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #10 20070713 12:05:42
Re: Integral Marathoni'll say! A logarithm is just a misspelled algorithm. #11 20070714 03:23:52
#12 20070715 19:17:53#13 20070716 02:30:54
Re: Integral MarathonDoesn't this sort of thing also belong in Puzzles and Games? It is kind of a game, after all, it does follow the rule of most forumbased games. #14 20070716 05:01:45
Re: Integral MarathonMaybe it used to, but now it belongs in the "Jane is mean " section. Why did the vector cross the road? It wanted to be normal. #15 20070716 20:40:31#16 20070716 21:30:31
Re: Integral Marathonis that meant to be interpreted as: or ? The Beginning Of All Things To End. The End Of All Things To Come. #17 20070716 22:03:11
Re: Integral MarathonOops, typo. That should read "mathsy is dumb " Why did the vector cross the road? It wanted to be normal. #18 20070716 22:18:44
Re: Integral MarathonLast edited by JaneFairfax (20070716 22:22:43) #19 20070716 22:22:26
Re: Integral Marathonis continuous for all real x and is therefore integrable for all real x. There is a theorem that states that all continuous functions are Riemann integrable. #20 20070717 01:53:38
Re: Integral MarathonNow Jane, go again. "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #21 20070717 08:53:20
Re: Integral MarathonYes. I believe you can integrate an absolutely convergent series term by term within its radius of convergence, and the result would be another absolutely convergent series? Ricky’s turn. Last edited by JaneFairfax (20070717 09:02:54) #22 20070717 10:16:01
Re: Integral MarathonPass. "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #23 20070717 10:19:35
Re: Integral MarathonI forgot to mention that don't post integrals which don't have a primitive function in elementary terms. #24 20070717 10:32:51
Re: Integral MarathonPass? :( Who's next? this was in one of my books, i could never figure out how to do it. i think its non elementary. Last edited by mikau (20070717 10:36:11) A logarithm is just a misspelled algorithm. #25 20070717 12:09:23
Re: Integral MarathonNot impossible but it involves complex analysis. I would suggest picking a different integral. "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." 