$Erf: Difference between revisions
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<span class="pageSubtitle">Error function</span> | <span class="pageSubtitle">Error function</span> | ||
<p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented | <p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented | ||
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The <var>$Erf</var> function returns the value: | The <var>$Erf</var> function returns the value: | ||
2/√π <sub>0</sub>∫<sup>x</sup> e<sup>-z<sup>2</sup></sup> dz | |||
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==Syntax== | ==Syntax== | ||
Revision as of 18:28, 6 January 2012
Error function
Most Sirius $functions have been deprecated in favor of Object Oriented methods. There is currently no direct OO equivalent for the $Erf function.
The $Erf function returns the value:
2/√π 0∫x e-z2 dz
Syntax
%num = $Erf(x)
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.