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! CY01 computes complex Bessel functions Y0(z) and Y1(z) and derivatives.
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 KF, the function choice.
0 for ZF = Y0(z) and ZD = Y0'(z);
1 for ZF = Y1(z) and ZD = Y1'(z);
2 for ZF = Y1'(z) and ZD = Y1''(z).
Input, complex ( kind = 8 ) Z, the argument.
Output, complex ( kind = 8 ) ZF, ZD, the values of the requested function
and derivative.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer(kind=4) | :: | kf | ||||
| complex(kind=8) | :: | z | ||||
| complex(kind=8) | :: | zf | ||||
| complex(kind=8) | :: | zd |