$Gamma: Difference between revisions
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<p class="syntax"><span class="term">%num</span><span class="literal"> = $Gamma(</span><span class="term">x</span><span class="literal">)</span> </p> | <p class="syntax"><span class="term">%num</span><span class="literal"> = $Gamma(</span><span class="term">x</span><span class="literal">)</span> </p> | ||
If ''x'' is not within the range 0 < ''x'' < 57.5744, | ==Usage notes== | ||
<ul> | |||
<li>If ''x'' is not within the range 0 < ''x'' < 57.5744, | |||
an error message is printed and a | an error message is printed and a | ||
0 is returned. | 0 is returned. | ||
{{Template:Math $functions note}} | <li>{{Template:Math $functions note}} | ||
</ul> | |||
Revision as of 20:54, 10 April 2013
Gamma function
Most Sirius $functions have been deprecated in favor of Object Oriented methods. There is currently no direct OO equivalent for the $Gamma function.
The $Gamma function returns the value:
0∫∞ ux-1 e-u du
Syntax
%num = $Gamma(x)
Usage notes
- If x is not within the range 0 < x < 57.5744, 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.