$LGamma: Difference between revisions
Jump to navigation
Jump to search
m (1 revision: from DME w/ love) |
mNo edit summary |
||
| Line 1: | Line 1: | ||
<span class="pageSubtitle">LGamma function</span> | <span class="pageSubtitle">LGamma function</span> | ||
<p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented | <p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented | ||
| Line 8: | Line 7: | ||
The <var>$LGamma</var> function returns the value: | The <var>$LGamma</var> function returns the value: | ||
log<sub>e</sub> <sub>0</sub>∫<sup>∞</sup> u<sup>x-1</sup> e<sup>-u</sup> du | |||
< | |||
< | |||
< | |||
</ | |||
==Syntax== | ==Syntax== | ||
Revision as of 18:50, 6 January 2012
LGamma function
Most Sirius $functions have been deprecated in favor of Object Oriented methods. There is currently no direct OO equivalent for the $LGamma function.
The $LGamma function returns the value:
loge 0∫∞ ux-1 e-u du
Syntax
%num = $LGamma(x)
If x is not in the range 0 < x < 4.2913 * 10&'sup(73), an error message is printed and a 0 is returned.
See the SIRFUNC EXEC parameter for an explanation of when this high-performance, high-precision version of the IBM mathematical function from the Sirius Mods is used, as opposed to the version of the $function in the Model 204 FUND or FUNDLE CSECT.