CEESxLGM—Log gamma
CEESxLGM performs the mathematical function of log gamma by using either of the following equations:
| First equation | Alternate equation |
|---|---|
 |
 |
The following routines are provided for the various data types
supported:
- CEESSLGM
- 32-bit single floating-point number
- CEESDLGM
- 64-bit double floating-point number
Syntax >>-CEESxLGM--(--parm1--,--fc--,--result--)---------------------><
- parm1 (input)
- The input to the log gamma routine. 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 log gamma routine. The output range varies:
For Output range Single-precision routines: 
Double-precision routines: 
