LOG_GAMMA(X) (Fortran 2008)
Purpose
Logarithm of the absolute value
of the GAMMA function.
Class
Elemental function
Argument type and attributes
- X
- An INTENT(IN) REAL. Its value must be greater than 0.
Result type and attributes
Same as X.
Result value
The result value approximates the natural logarithm of the absolute value of the GAMMA function of X, namely LOG(ABS(GAMMA(X))).
Examples
LOG_GAMMA(1.0) has the value 0.0, approximately.
| Specific Name | Argument Type | Result Type | Pass As Arg? |
|---|---|---|---|
| LGAMMA | default real | default real | no |
| LGAMMA | double precision real | double precision real | no |
| ALGAMA 1 2 | default real | default real | yes |
| DLGAMA 1 3 | double precision real | double precision real | yes |
| QLGAMA 1 4 | REAL(16) | REAL(16) | yes |
| Notes:
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