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ZEROBESS

5.0

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ZEROBESS

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10 Feb 2010 (Updated )

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

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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

Bessel Function Zeros inspired this file.

This file inspired Quadrature Rule For Evaluating Integrals Containing Bessel Functions and Zero Bess Cross.

MATLAB release MATLAB 7.8 (R2009a)
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Comments and Ratings (6)
29 Oct 2013 Ahmed

Please I'd like to ask if you have the code to plot the bessel fuction of first kind and it's derivatives with their zeros shown clearly.

Thanks in advance!

19 Mar 2012 Thanh Chung  
25 Nov 2011 Amir  
15 Oct 2011 Eighteen  
13 Oct 2010 Jesse

This is every bit as good as chocolate ice cream.

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)!

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.

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