Spherical Bessel Function of the First Kind |
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Spherical Bessel Function of the First Kind
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The spherical Bessel function of the first kind, denoted , is defined by (1)where is a Bessel function of the first kind and, in general, and are complex numbers. The function is most commonly encountered in the case an integer, in which case it is given by (2) (3) (4)Equation (4) shows the close connection between and the sinc function . Spherical Bessel functions are implemented in the Wolfram Language as SphericalBesselJ[nu, z] using the definition (5)which differs from the "traditional version" along the branch cut of the square root function, i.e., the negative real axis (e.g., at ), but has nicer analytic properties for complex (Falloon 2001). The first few functions are (6) (7) (8)which includes the special value (9) See alsoSinc Function, Spherical Bessel Differential Equation, Bessel Function of the Second Kind, Poisson Integral Representation, Rayleigh's Formulas, Spherical Bessel Function of the Second Kind Explore with Wolfram|AlphaMore things to try: Anger function Bessel functions aleph0^3 = aleph0 ReferencesAbramowitz, M. and Stegun, I. A. (Eds.). "Spherical Bessel Functions." §10.1 in Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, pp. 437-442, 1972.Arfken, G. "Spherical Bessel Functions." §11.7 in Mathematical Methods for Physicists, 3rd ed. Orlando, FL: Academic Press, pp. 622-636, 1985.Falloon, P. E. Theory and Computation of Spheroidal Harmonics with General Arguments. Masters thesis. Perth, Australia: University of Western Australia, 2001. http://www.physics.uwa.edu.au/pub/Theses/2002/Falloon/Masters_Thesis.pdf.Referenced on Wolfram|AlphaSpherical Bessel Function of the First Kind Cite this as:Weisstein, Eric W. "Spherical Bessel Function of the First Kind." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SphericalBesselFunctionoftheFirstKind.html Subject classifications |
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