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<html><head><title>XLISP second</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>second</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>function (subr)</nobr></td>
</tr>
<tr valign="top">
<td><nobr>Source:</nobr></td>
<td><nobr> - </nobr></td>
<td width="100%"><nobr>xlinit.c</nobr></td>
</tr>
</tbody></table></p>
<h2>Syntax</h2>
<dl>
<dt>(second <i>expr</i>)</dt>
<dd><i>expr</i> - a list or list expression<br>
returns - the second element of <i>expr</i></dd>
</dl>
<h2>Description</h2>
<p>The 'second' function returns the second element of a list or list
expression. If the list is
<nobr><a href="nil.htm">NIL</a> ,</nobr>
<a href="nil.htm">NIL</a> is returned.</p>
<h2>Examples</h2>
<pre class="example">
(second '(1 2 3)) <font color="#008844">; returns 2</font>
(second NIL) <font color="#008844">; returns NIL</font>
(setq carol '(a b c)) <font color="#008844">; set up variable CAROL</font>
(first carol) <font color="#008844">; returns A</font>
(second carol) <font color="#008844">; returns B</font>
(rest carol) <font color="#008844">; returns (B C)</font>
(setq children '(amanda ben)) <font color="#008844">; set up variable CHILDREN</font>
(second children) <font color="#008844">; returns BEN</font>
</pre>
<p><b>Note:</b> This function is set to the same code as the
<a href="caar.htm">cadr</a> function.</p>
<p>See the
<a href="../manual/xlisp-man-016.htm#second">second</a>
function in the <nobr>XLISP 2.0</nobr> manual.</p>
<p><nobr> <a href="#top">Back to Top</nobr></a></p>
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