CGamma
[this page | pdf | references | back links]
Function Description
Returns 
,
the value of the gamma function evaluated for a complex number, 
. The gamma
function, is
defined as:
It can thought of as an extension of the factorial function,
but offset by one, since it satisfies the following recurrence relationship: 
.
The Nematrian website calculates this value using a Lanczos approximation
and a reflection formula, see MnGamma.
For details of how to pass complex numbers to and from the
Nematrian website and on principal values of complex-valued functions please
see Complex Numbers
Introduction.
NAVIGATION LINKS
Contents | Prev | Next
Output type / Parameter details
Output type: Double()
| Parameter Name | Variable Type | Description |
| z | Double() | Complex value for which to evaluate function (use a two element array, first element is real part, second element is imaginary part) |
Links to:
-
Interactively run function
-
Interactive instructions
-
Example calculation
-
Output type / Parameter details
-
Illustrative spreadsheet
-
Other Complex numbers functions
-
Computation units used
Note: If you use any Nematrian web service either programmatically or interactively then you will be deemed to have agreed to the Nematrian website License Agreement