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Topic: Removing singularity at x=0 for integral
Replies: 7   Last Post: Nov 28, 2013 3:25 PM

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 dspguy2@netscape.net Posts: 17 Registered: 8/7/07
Re: Removing singularity at x=0 for integral
Posted: Nov 27, 2013 6:13 PM

On Tuesday, November 26, 2013 10:10:58 PM UTC-5, robin....@gmail.com wrote:
> On Wednesday, November 27, 2013 2:10:25 AM UTC+11, dsp...@netscape.net wrote:
>

>
>
> It doesn't matter whether the exponential goes to zero faster than the power.
>
> The fact is that you can't divide by zero in both the exponential and the power.
>

By the exponential going to zero faster than the power -> the limit does exist, and you should be able to remove the singularity.

In fact - I found that I can that by splitting x^-0.5 = x^0.5 * x^-2. Then use integration by parts. Letting dv = 1/x^2 * exp(-A/x) then you can easily integrate to find v.

Thanks for the help.
David

Date Subject Author
11/26/13 dspguy2@netscape.net
11/26/13 Axel Vogt
11/27/13 dspguy2@netscape.net
11/28/13 Martin Brown
11/28/13 Axel Vogt
11/28/13 Axel Vogt
11/26/13 Robin Vowels
11/27/13 dspguy2@netscape.net