CEESxGMA—Gamma function

CEESxGMA performs the mathematical gamma function by using the equation:

Equation for mathematical gamma function

The following routines are provided for the various data types supported:

CEESSGMA: 32-bit single floating-point number
CEESDGMA: 64-bit double floating-point number


Syntax

>>-CEESxGMA--(--parm1--,--fc--,--result--)---------------------><

parm1 (input)

The input to the gamma function. The input range is:

fc (output)

A 12-byte feedback code, optional in some languages, that indicates the result of this service. If you choose to omit this parameter, refer to Invoking callable services for the appropriate syntax to indicate that the feedback code was omitted.

The following symbolic conditions can result from this service:

Code	Severity	Message number	Message text
CEE000	0	—	The service completed successfully.
CEE1UL	2	2005	The value of the parameter was outside the valid range `range` in math routine `routine-name`.

result (output)

The result of the gamma function. The output range varies, depending on the type of routine:

For	Output range
Single-precision routines:
Double-precision routines: