Class C7e: Incomplete gamma function
Modules
Package CEPHES (Downloadable)
- CPROB
- C routines for evaluation of probability distribution functions and their complements, inverses, and related functions. Among the distributions included are binomial, negative binomial, Beta, Chi-square, F, Gamma, normal, Poisson, and Student''s t. .
Package CMLIB (Downloadable; Installed on ITL, ARNO)
- DGAMI
- Incomplete gamma function, for double precision argument.
- DGAMIC
- Complementary incomplete gamma function, for double precision argument.
- DGAMIT
- Tricomi''s incomplete gamma function, for double precision argument.
- GAMI
- Incomplete gamma function.
- GAMIC
- Complementary incomplete gamma function.
- GAMIT
- Tricomi''s incomplete gamma function.
Package FN (Downloadable)
- DGAMI
- Incomplete gamma function.
- DGAMIC
- Complementary incomplete gamma function.
- DGAMIT
- Tricomi''s incomplete gamma function.
- GAMI
- Incomplete gamma function.
- GAMIC
- Complementary incomplete gamma function.
- GAMIT
- Tricomi''s incomplete gamma function.
Package IMSLM (Installed on ITL)
- DGAMI
- Incomplete gamma function.
- DGAMIC
- Complementary incomplete gamma function.
- DGAMIT
- Tricomi''s incomplete gamma function, for double precision argument.
- GAMI
- Incomplete gamma function.
- GAMIC
- Complementary incomplete gamma function.
- GAMIT
- Tricomi''s incomplete gamma function.
Package IMSLS (Installed on ITL)
- CHIDF
- Chi-squared distribution function.
- CHIIN
- Inverse of the chi-squared distribution function.
- DCHIDF
- Chi-squared distribution function.
- DCHIIN
- Inverse of the chi-squared distribution function.
- DGAMDF
- Gamma distribution function.
- DGAMIN
- Evaluate the inverse of the gamma distribution function.
- GAMDF
- Gamma distribution function.
- GAMIN
- Evaluate the inverse of the gamma distribution function.
Package NAG
- S14BAF
- Incomplete gamma functions P(ax) and Q(ax)
- s14bac
- Incomplete gamma functions P(ax) and Q(ax)
Package SLATEC (Downloadable; Installed on ITL, ARNO)
- DGAMI
- Evaluate the incomplete Gamma function.
- DGAMIC
- Calculate the complementary incomplete Gamma function.
- DGAMIT
- Calculate Tricomi''s form of the incomplete Gamma function.
- GAMI
- Evaluate the incomplete Gamma function.
- GAMIC
- Calculate the complementary incomplete Gamma function.
- GAMIT
- Calculate Tricomi''s form of the incomplete Gamma function.
Package TOMS (Downloadable)
- 542
- GAM: a Fortran subroutine based on Taylor''s series and continued fractions for evaluating Tricomi''s incomplete gamma function and the complementary incomplete gamma function. (See W. Gautschi, ACM TOMS 5 (1979) pp. 482-489.).
- 654
- GRATIO and GAMINV: Fortran routines for computing the incomplete gamma function ratios and their inverse. (See A. R. DiDonato and A. H. Morris, Jr., ACM TOMS 13 (1987) pp. 318-319.).
- 814
- FM: Multiple precision arithmetic, and evalution of gamma and related functions, such as psi (digamma), polygamma, beta, incomplete gamma, incomplete beta, Bernoulli numbers, and Pochhammer''s symbol. (See D. Smith, ACM TOMS 27 (2001) pp. 377-387).