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zerobess(funstr,nu,m) ZEROBESS Zeros of Bessel functions/derivatives of 1st and 2nd kind.
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ZEROBESS

10 Feb 2010 (Updated 02 Dec 2011)

Zeros of Bessel functions of 1st and 2nd kind plus zeros of the derivatives.

File Information
Description	Pretty fast code for zeros of Bessel functions of 1st and 2nd kind and for zeros of the derivatives. The Newton-Raphson method is used with the initial guess predicted from previously computed zeros.
Acknowledgements	The author wishes to acknowledge the following in the creation of this submission: Bessel Function Zeros
MATLAB release	MATLAB 7.8 (R2009a)

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Everyone's Tags	bessel, bessel function, derivatives, mathematics, zerobess, zeros
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Comments and Ratings (5)
09 Aug 2010	Nedialko	To try = to adopt Suffices to say that it's more than 20 times faster than besselzero() & the vector norm of the difference between besselzero() & zerobess() across 800 zeros found (n=0:7, k=100) is about 10^(-15)!
13 Oct 2010	Jesse	This is every bit as good as chocolate ice cream.
15 Oct 2011	Eighteen
25 Nov 2011	Amir
19 Mar 2012	Thanh Chung

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Updates
09 Nov 2010	Zeros of derivatives added.
22 Jun 2011	Cosmetic changes
21 Nov 2011	New contact info
02 Dec 2011	More accurate for zerobess('DJ',nu,1), nu < 0.005.