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! HYGFX evaluates the hypergeometric function F(A,B,C,X).
Licensing:
The original FORTRAN77 version of this routine is copyrighted by
Shanjie Zhang and Jianming Jin. However, they give permission to
incorporate this routine into a user program that the copyright
is acknowledged.
Modified:
08 September 2007
Author:
Original FORTRAN77 version by Shanjie Zhang, Jianming Jin.
FORTRAN90 version by John Burkardt.
Reference:
Shanjie Zhang, Jianming Jin,
Computation of Special Functions,
Wiley, 1996,
ISBN: 0-471-11963-6,
LC: QA351.C45
Parameters:
Input, real ( kind = 8 ) A, B, C, X, the arguments of the function.
C must not be equal to a nonpositive integer.
X < 1.
Output, real HF, the value of the function.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=8) | :: | a | ||||
| real(kind=8) | :: | b | ||||
| real(kind=8) | :: | c | ||||
| real(kind=8) | :: | x | ||||
| real(kind=8) | :: | hf |