$Exp or $Exp e: Difference between revisions

From m204wiki
Jump to navigation Jump to search
m (moved $Exp to $Exp or Exp e)
mNo edit summary
Line 1: Line 1:
{{DISPLAYTITLE:$Exp or Exp_e}}
<span class="pageSubtitle">Exponential function</span>
<span class="pageSubtitle">Exponential function</span>
<p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented
<p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented
methods.
methods.
The OO equivalent for the
The OO equivalent for the <var>$Exp</var>
<var>$Exp</var>
function is the <var>[[AntilogE (Float function)|AntilogE]]</var> function.</p>
function is the <var>[[AntilogE (Float function)|AntilogE]]</var> function.</p>
[[Category: Mathematical $functions]]
[[Category: Mathematical $functions]]
Line 9: Line 9:
</p>
</p>


The <var>$Exp</var> function returns the
The <var>$Exp</var> function (or its alias, <var>$Exp_e</var>) returns the
value <code>e<sup>x</sup></code>.
value <code>e<sup>x</sup></code>.


==Syntax==
==Syntax==
<p class="syntax"><span class="term">%num</span><span class="literal"> = $Exp(</span><span class="term">x</span><span class="literal">)</span>  </p>
<p class="syntax"><span class="term">%num</span><span class="literal"> = $Exp</span><span class="squareb">[</span><span class="literal">_e</span><span class="squareb">]</span><span class="literal">(</span><span class="term">x</span><span class="literal">)</span>  </p>


If ''x'' exceeds 174.63, an error message
If ''x'' exceeds 174.63, an error message

Revision as of 19:22, 10 January 2012

Exponential function

Most Sirius $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $Exp function is the AntilogE function.

The $Exp function (or its alias, $Exp_e) returns the value ex.

Syntax

%num = $Exp[_e](x)

If x exceeds 174.63, 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.