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spherical bessel function

 
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sar5



Joined: 17 May 2004
Posts: 16


Post08 Jul 2004 12:45   spherical bessel function
tags: spherical bessel function

Hi,

I am looking for expressions concerning spherical bessel functions and Ricatti functions for COMPLEX ARGUMENT.

When complex arguement (eg/ 10+j 13) for sperical bessel functions in MATHCAD is used the result is very large(10 exp 22). Is this normal? the result is same in FORTRAN aswell.

THANKS
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Kit-the-great



Joined: 30 Mar 2002
Posts: 174
Helped: 1
Location: Russia


Post08 Jul 2004 13:18   spherical bessel function
tags: spherical bessel function

What do You mean by spherical bessel function ? Is it the bessel function of third kind (Hankel function) ? And what order of this function ?
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sar5



Joined: 17 May 2004
Posts: 16


Post08 Jul 2004 14:52   Re: spherical bessel function
tags: spherical bessel function spherical bessel wikipedia

The spherical Bessel function (aka half-order Bessel functions) is found in the case of systems with spherical symmetry.

j(n,x) = (pi / 2x)^1/2 * J(n+1/2, x)

Like Bessel functions there are 3 kinds of Spherical Bessel functions- first kind, second kind and spherical hankel functions.

It should be RICATTI BESSEL FUNCTIONS not RICATTI FUNCTIONS.


http://www.phys.ufl.edu/~fry/4605/jn.pdf

http://en.wikipedia.org/wiki/Bessel_function#Spherical_Bessel_functions
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sar5



Joined: 17 May 2004
Posts: 16


Post08 Jul 2004 14:55   Re: spherical bessel function
tags: spherical bessel function

does anyone have this book?

COMPUTATION OF SPECIAL FUNCTIONS , by Shanjie Zhang and Jianming Jin, ISBN 0-471-11963-6

Is it possible to share the information on Spherical Bessel Functions for COMPLEX ARGUMENT.

THANKS A LOT
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djalli



Joined: 10 Nov 2001
Posts: 887
Helped: 15
Location: 1600 Pennsylvania Avenue, Washington DC 20500


Post12 Jul 2004 0:12   spherical bessel function

I would love to have that book too.
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