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<html><head><title>XLISP power</title>
<link rel="stylesheet" type="text/css" href="reference.css">
</head>
<body>
<a href="../start.htm">Nyquist / XLISP 2.0</a> -
<a href="../manual/contents.htm">Contents</a> |
<a href="../tutorials/tutorials.htm">Tutorials</a> |
<a href="../examples/examples.htm">Examples</a> |
<a href="reference-index.htm">Reference</a>
<hr>
<h1>power</h1>
<hr>
<p><table cellpadding="0" cellspacing="0" style="margin-left:10px"><tbody>
<tr valign="top">
<td><nobr>Type:</nobr></td>
<td><nobr> - </nobr></td>
<td width="100%"><nobr>Lisp function (closure)</nobr></td>
</tr>
<tr valign="top">
<td><nobr>Source:</nobr></td>
<td><nobr> - </nobr></td>
<td width="100%"><nobr>misc.lsp</nobr></td>
</tr>
</tbody></table></p>
<h2>Syntax</h2>
<p><div class="box">
<dl>
<dt><nobr>(<b>power</b> <i>x y</i>)</nobr></dt>
<dd><i>x</i>, <i>y</i> - two integer or floating point numbers<br>
returns - <i>x</i> raised to the <i>y</i> power as a floating point number</dd>
</dl>
</div></p>
<p>In Nyquist, 'power' is implemented as a Lisp function:</p>
<pre class="example">
(defun <font color="#0000CC">power</font> (x y)
(exp (* (log (float x)) y)))
</pre>
<h2>Description</h2>
<p>The 'power' function returns 'x' raised to the 'y' power as a floating
point number.</nobr>
<h2>Examples</h2>
<pre class="example">
(power 2 8) => 256
(power 4 .5) => 2.0
</pre>
<p>See also <a href="expt.htm">expt</a>.</p>
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