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! CLQN: Legendre function Qn(z) and derivative Wn'(z) for complex argument.
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:
01 August 2012
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 ) N, the degree of Qn(z).
Input, real ( kind = 8 ) X, Y, the real and imaginary parts of the
argument Z.
Output, complex ( kind = 8 ) CQN(0:N), CQD(0:N), the values of Qn(z)
and Qn'(z.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer(kind=4) | :: | n | ||||
| real(kind=8) | :: | x | ||||
| real(kind=8) | :: | y | ||||
| complex(kind=8) | :: | cqn(0:n) | ||||
| complex(kind=8) | :: | cqd(0:n) |