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.
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!
This is every bit as good as chocolate ice cream.
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)!
More accurate for zerobess('DJ',nu,1), nu < 0.005.
New contact info
Zeros of derivatives added.
Inspired by: Bessel Function Zeros
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