$RxpI: Difference between revisions
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<span class="pageSubtitle">Real base raised to integer exponent</span> | <span class="pageSubtitle">Real base raised to integer exponent</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 $RxpI function.</p> | ||
[[Category: Mathematical $functions]] | [[Category: Mathematical $functions]] | ||
<p> | <p> | ||
Revision as of 16:04, 10 April 2013
Real base raised to integer exponent
Most Sirius $functions have been deprecated in favor of Object Oriented methods. There is currently no direct OO equivalent for the $RxpI function.
The $RxpI function returns the value of its first argument raised to the power of its second argument. The second argument is initially rounded to the nearest integral value.
Syntax
%num = $RxpI(x)
Omitted arguments are set to 0. If x equals 0, and |y| is less than or equal to 0, an error message is printed and a 0 is returned.
For example:
$rxpi(2, 3) = 23 = 8 $rxpi(.5, 1.4) = $rxpi(.5, 1) = .5
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.