$RxpR: Difference between revisions

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For example:
For example:
<p class="code"> $RXPR(9, 2) = 9&'sup(2) = 81
<p class="code"> $RXPR(9, 2) = 9<sup>2</sup> = 81


  $RXPR(64, .5) = 8
  $RXPR(64, .5) = 8

Revision as of 19:20, 6 January 2012

Real base raised to real exponent

Most Sirius $functions have been deprecated in favor of Object Oriented methods. There is currently no direct OO equivalent for the $RxPR function.

The $RxPR function returns the value of its first argument raised to the power of its second argument.

Syntax

%num = $RxPR(x)

If either of the following is true, an error message is printed and a 0 is returned:

  • x is less than zero.
  • x equals 0, and y is less than or equal to 0.

For example:

$RXPR(9, 2) = 92 = 81 $RXPR(64, .5) = 8 $RXPR(256, .25) = 4

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.