$LGamma: Difference between revisions
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<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 | ||
methods. There is currently no direct OO equivalent for the | methods. There is currently no direct OO equivalent for the $LGamma function.</p> | ||
[[Category: Mathematical $functions]] | [[Category: Mathematical $functions]] | ||
<p> | <p> | ||
Revision as of 16:04, 10 April 2013
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.