$Erf: Difference between revisions
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<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 $Erf function.</p> | methods. There is currently no direct OO equivalent for the $Erf function.</p> | ||
The <var>$Erf</var> function returns the value: | The <var>$Erf</var> function returns the value: | ||
<p class="code">2/√π <sub>0</sub>∫<sup>x</sup> e<sup>-z<sup>2</sup></sup> dz | |||
</p> | |||
==Syntax== | ==Syntax== | ||
<p class="syntax"><span class="term">%num</span><span class="literal"> = $Erf(</span><span class="term">x</span><span class="literal">)</span> </p> | <p class="syntax"><span class="term">%num</span><span class="literal"> = $Erf(</span><span class="term">x</span><span class="literal">)</span> </p> | ||
{{Template:Math $functions note}} | ==Usage notes== | ||
<ul> | |||
<li>{{Template:Math $functions note}} | |||
</ul> | |||
[[Category: Mathematical $functions]] | |||
Revision as of 20:59, 10 April 2013
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)
Usage notes
- 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.