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laursarv
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Post subject: Zeros of the Bessel function J0(x)=0  Posted: Sun Dec 12, 2010 1:14 pm |
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Joined: Sat Dec 11, 2010 12:25 pm
Posts: 2
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Is there any subroutine to find them?
Any table maybe somewhere?
thanks in advance
Laur Sarv
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Sergey.Bochkanov
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Post subject: Re: Zeros of the Bessel function J0(x)=0 Posted: Mon Dec 13, 2010 8:59 am |
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| Site Admin |
Joined: Fri May 07, 2010 7:06 am
Posts: 927
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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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laursarv
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Post subject: Re: Zeros of the Bessel function J0(x)=0 Posted: Wed Dec 15, 2010 11:04 pm |
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Joined: Sat Dec 11, 2010 12:25 pm
Posts: 2
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Thank You for Your advice.
I try to find some table first.
Laur Sarv
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