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5.0 | 5 ratings Rate this file 15 Downloads (last 30 days) File Size: 3.04 KB File ID: #26639 Version: 1.4
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Jonas Lundgren (view profile)


10 Feb 2010 (Updated )

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

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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.


Bessel Function Zeros inspired this file.

This file inspired Quadrature Rule For Evaluating Integrals Containing Bessel Functions.

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

Ahmed (view profile)

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!

Comment only
19 Mar 2012 Thanh Chung

25 Nov 2011 Amir

Amir (view profile)

15 Oct 2011 Eighteen

13 Oct 2010 Jesse

Jesse (view profile)

This is every bit as good as chocolate ice cream.

09 Aug 2010 Nedialko

Nedialko (view profile)

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)!

09 Nov 2010 1.1

Zeros of derivatives added.

22 Jun 2011 1.2

Cosmetic changes

21 Nov 2011 1.3

New contact info

02 Dec 2011 1.4

More accurate for zerobess('DJ',nu,1), nu < 0.005.

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