public subroutine rmn2so(m, n, c, x, cv, df, kd, r2f, r2d)
************80
! RMN2SO: oblate radial functions of the second kind with small argument.
Discussion:
This procedure computes oblate radial functions of the second kind
with a small argument, Rmn(-ic,ix) and Rmn'(-ic,ix).
Licensing:
This routine is copyrighted by Shanjie Zhang and Jianming Jin. However,
they give permission to incorporate this routine into a user program
provided that the copyright is acknowledged.
Modified:
27July2012
Author:
Shanjie Zhang, Jianming Jin
Reference:
Shanjie Zhang, Jianming Jin,
Computation of Special Functions,
Wiley, 1996,
ISBN: 0-471-11963-6,
LC: QA351.C45.
Parameters:
Input, integer ( kind = 4 ) M, the mode parameter; M = 0, 1, 2, ...
Input, integer ( kind = 4 ) N, mode parameter, N = M, M + 1, M + 2, ...
Input, real ( kind = 8 ) C, spheroidal parameter.
Input, real ( kind = 8 ) X, the argument.
Input, real ( kind = 8 ) CV, the characteristic value.
Input, real ( kind = 8 ) DF(*), the expansion coefficients.
Input, integer ( kind = 4 ) KD, the function code.
1, the prolate function.
-1, the oblate function.
Output, real ( kind = 8 ) R2F, R2D, the values of Rmn(-ic,ix)
and Rmn'(-ic,ix).
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Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
implementation in a submodule of an interface in a parent module.