 Math Retard Question |
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| Math Retard Question |
 Aug 6 2007, 03:52 PM
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#1
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 DEATH TO ....something? Group: Members Posts: 5,618 Joined: 23-February 06 From: Parker, CO Member No.: 55  |
Ok, this is embarassing, but Calc II was far and away my worst subject in all of college.
Let's say you have a 1/x function and you actually need to integrate this for a purpose instead of just for fun, so you have limite of integration on it. considering the integral of 1/x is ln (x) ... what do you do again if one of your limits of integration is 0 ...? mathematically you get infininty if you integrate this because the ln of 0 is infinity .... BUT. I actually need to figure out a way to quantify this equation for a useful purpose believe it or not. All my old calc books are still packed up so I can't go look at them and I can't find a tutorial on the internet. Help! I'm retarded! -------------------- I r Ur Gawd!
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Aug 6 2007, 04:15 PM
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#2
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 Group: Members Posts: 5,275 Joined: 22-February 06 Member No.: 2 |
dude, go buy a ti-89 and use the integration function
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Aug 6 2007, 04:24 PM
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#3
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DEATH TO ....something? Group: Members Posts: 5,618 Joined: 23-February 06 From: Parker, CO Member No.: 55 |
QUOTE (1up @ Aug 6 2007, 04:15 PM)  dude, go buy a ti-89 and use the integration function yeah this is one of those times a calculator doesn't help you but I realized my approach to this problem was wrong, so I'm re-doing it and should wind up without an indefinate integral or whatever.... -------------------- I r Ur Gawd!
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Aug 6 2007, 06:24 PM
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#4
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Group: Admin Posts: 6,906 Joined: 22-February 06 From: Austin Member No.: 9 |
The integral would be infinity. *shrugs*
But apparently you were doing it wrong, so this was an unnecessary response? -------------------- |
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Aug 6 2007, 06:34 PM
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#5
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DEATH TO ....something? Group: Members Posts: 5,618 Joined: 23-February 06 From: Parker, CO Member No.: 55 |
QUOTE (Spectatrix @ Aug 6 2007, 06:24 PM) The integral would be infinity. *shrugs* But apparently you were doing it wrong, so this was an unnecessary response? Well, I was trying to make the problem simpler than it was. Now that it's more complicated it's easier to solve. haha 
-------------------- I r Ur Gawd!
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Aug 6 2007, 11:05 PM
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#6
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 New son Donovan Charles Mummert born July 17, 2008 Group: Members Posts: 8,635 Joined: 22-February 06 From: Port Wentworth, GA Member No.: 15 |
yet another area in which my philosophy degree has proved useless
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Aug 6 2007, 11:41 PM
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#7
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 Oh baby bring me down  Group: Agents Posts: 4,115 Joined: 23-February 06 From: Way out yonder Member No.: 68 |
so, why were you trying to integrate the area?
-------------------- Southern Rock, beer and bears!
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Aug 7 2007, 01:44 AM
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#8
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 GORILLA FLUFFER Group: Agents Posts: 7,711 Joined: 23-February 06 From: lubbock Member No.: 50 |
QUOTE (Jessica @ Aug 7 2007, 12:05 AM) yet another area in which my philosophy degree has proved useless at least you have your vagina degree to fall back on. --------------------  QUOTE (Jessica @ May 7 2007, 01:15 PM) but yeehaw dammit. YEEHAW QUOTE (Dogmeat @ Jun 26 2008, 07:51 PM) ok once upon a time I jacked myself off retarded. Licking anuses, one kindergarten class at a time!! |
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Aug 7 2007, 08:38 AM
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#9
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 Group: Members Posts: 10,620 Joined: 23-February 06 From: Houston, TX Member No.: 48 |
ooh ice-burn
and dogmeat what in God's name are you trying to do? |
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Aug 13 2007, 08:15 PM
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#10
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 Do they ignore parts of reality? Group: Moderators Posts: 2,935 Joined: 23-February 06 From: South Overton!!! Member No.: 46 |
QUOTE (FORSAKENR320 @ Aug 7 2007, 02:44 AM) at least you have your vagina degree to fall back on. At least she has a degree... -------------------- A psychotic world we live in. The madmen are in power. How long have we known this? Faced this? And--how many of us do know it? Perhaps if you know you are insane then you are not insane. Or you are becoming sane, finally. Waking up. I suppose only a few are aware of all this. Isolated persons here and there. But the broad masses... what do they think? All these hundreds of thousands in this city, here. Do they imagine that they live in a sane world? Or do they guess, glimpse, the truth...?
-Philip K. Dick |
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Aug 13 2007, 08:26 PM
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#11
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GORILLA FLUFFER Group: Agents Posts: 7,711 Joined: 23-February 06 From: lubbock Member No.: 50 |
QUOTE (Dr. Gonzo @ Aug 13 2007, 09:15 PM) At least she has a degree... pay $50,000 and have a useless degree..... what is so good about having it again? -------------------- QUOTE (Jessica @ May 7 2007, 01:15 PM) but yeehaw dammit. YEEHAW QUOTE (Dogmeat @ Jun 26 2008, 07:51 PM) ok once upon a time I jacked myself off retarded. Licking anuses, one kindergarten class at a time!! |
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Aug 13 2007, 08:36 PM
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#12
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 Group: Members Posts: 1,761 Joined: 23-February 06 From: Lubbock/Dubai Member No.: 57 |
i got a masters in engineering...and still i dont know
-------------------- bored...so i did this
http://beerlist.wetpaint.com/ |
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Aug 13 2007, 11:04 PM
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#13
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Do they ignore parts of reality? Group: Moderators Posts: 2,935 Joined: 23-February 06 From: South Overton!!! Member No.: 46 |
That is probably a bad thing, yes?
-------------------- A psychotic world we live in. The madmen are in power. How long have we known this? Faced this? And--how many of us do know it? Perhaps if you know you are insane then you are not insane. Or you are becoming sane, finally. Waking up. I suppose only a few are aware of all this. Isolated persons here and there. But the broad masses... what do they think? All these hundreds of thousands in this city, here. Do they imagine that they live in a sane world? Or do they guess, glimpse, the truth...?
-Philip K. Dick |
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Aug 14 2007, 04:20 AM
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#14
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GORILLA FLUFFER Group: Agents Posts: 7,711 Joined: 23-February 06 From: lubbock Member No.: 50 |
QUOTE (schwab @ Aug 13 2007, 09:36 PM) i got a masters in engineering...and still i dont know well, i see your degree as useful. it actually opens up a alot of good job options.... it's not a waste of money. -------------------- QUOTE (Jessica @ May 7 2007, 01:15 PM) but yeehaw dammit. YEEHAW QUOTE (Dogmeat @ Jun 26 2008, 07:51 PM) ok once upon a time I jacked myself off retarded. Licking anuses, one kindergarten class at a time!! |
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Aug 15 2007, 03:14 PM
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#15
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Group: Members Posts: 290 Joined: 23-February 06 Member No.: 59 |
Mathematics grad student to the rescue. You can't integrate it with the bottom limit of zero, you'll get infinity. If you're doing something where you're integrating to 0 then you're probably doing it wrong. Perhaps you could explain the problem and I should be able to help you out.
A little explanation. Since you have a bound that doesn't exist you actually take the limit of the integral from N to whatever and then evaluate with the limit of N approaching 0. But once again you'll get lim N -> 0 [ ln(l) - ln(N) ] = ln(l) - (-inf). Where l is your upper bound. I'd use b as your bound but it keeps making smiley faces like this 
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