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| Zeros of the Bessel function J0(x)=0 http://forum.alglib.net/viewtopic.php?f=2&t=138 |
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| Author: | laursarv [ Sun Dec 12, 2010 1:14 pm ] |
| Post subject: | Zeros of the Bessel function J0(x)=0 |
Is there any subroutine to find them? Any table maybe somewhere? thanks in advance Laur Sarv |
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| Author: | Sergey.Bochkanov [ Mon Dec 13, 2010 8:59 am ] |
| Post subject: | Re: Zeros of the Bessel function J0(x)=0 |
ALGLIB doesn't support it directly, but you can try to find good initial approximations and to solve equation J(x)=0 numerically. Abramowitz and Stegun has asymptotic approximation, and you can hard-code several initial values which are hard to approximate analytically. |
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| Author: | laursarv [ Wed Dec 15, 2010 11:04 pm ] |
| Post subject: | Re: Zeros of the Bessel function J0(x)=0 |
Thank You for Your advice. I try to find some table first. Laur Sarv |
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