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3 [h4 Ordinary Bessel Functions]
5 Bessel Functions are solutions to Bessel's ordinary differential
31 The Bessel functions satisfy the recurrence relations:
54 [h4 Modified Bessel Functions]
56 The Bessel functions are valid for complex argument /x/, and an important
58 valued result.  In this case the functions are the two linearly 
63 The solutions are known as the modified Bessel functions of the first and 
64 second kind (or occasionally as the hyperbolic Bessel functions of the first
72 These functions are implemented in this library as __cyl_bessel_i and
75 The modified Bessel functions satisfy the recurrence relations:
97 [h4 Spherical Bessel Functions]
105 spherical Bessel functions j[sub n] and y[sub n] and are related to the 
106 ordinary Bessel functions J[sub n] and Y[sub n] by:
113 These functions are implemented in this library as __sph_bessel and