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Bessel Function of Complex Order and Argument

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04 Jan 2006 (Updated )

Bessel function of complex order and argument

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As so many people have asked me the C++ code for calculating besel functions of complex order and complex arguemnt, I now submit them to benifit more people ...

MATLAB release MATLAB 7.0.4 (R14SP2)
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Comments and Ratings (7)
16 Nov 2013 Mark T

Hi again, I needed to use this function intensively. By shifting the series summation into the mex file, one can gain significant speed-up (for my work, about 50x faster).

15 Nov 2013 Mark T

Many thanks for this.
Concerning the previous comment, it seems that the tolerance can be adjusted in cbesselj.m ('tol'). Still needs some tweaking to allow one to call the function with independent arrays for nu and x (i.e. both not scalar).

20 Oct 2008 Simen Ellingsen

It's a very good initiative but a precision of two or so digits is not good enough for my purposes, and I would think this goes for many other users too.

24 Oct 2006 chen li

If you compare the result with mathematica which can set the precision digits. This code has very big error. Thanks for sharing though.

27 Mar 2006 Wei Liu

Thank you very much for sharing.

27 Feb 2006 trudy gao

xie xie.

06 Jan 2006 Jay Simon

Hongxue, thank you for sharing this.

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