<?xml version="1.0" encoding="utf-8" ?> <!-- for emacs: -*- coding: utf-8 -*- -->
<!-- Apache may like this line in the file .htaccess: AddCharset utf-8 .html -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg-flat.dtd" >
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head><title># -- length, or access to elements</title>
<link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/>
</head>
<body>
<table class="buttons">
<tr>
<td><div><a href="__sh_qu.html">next</a> | <a href="_._qu.html">previous</a> | <a href="__sh_qu.html">forward</a> | <a href="_._qu.html">backward</a> | <a href="_operators.html">up</a> | <a href="index.html">top</a> | <a href="master.html">index</a> | <a href="toc.html">toc</a> | <a href="http://www.math.uiuc.edu/Macaulay2/">Macaulay2 web site</a></div>
</td>
</tr>
</table>
<div><a href="index.html" title="">Macaulay2Doc</a> > <a href="___The_sp__Macaulay2_splanguage.html" title="">The Macaulay2 language</a> > <a href="_operators.html" title="">operators</a> > <a href="__sh.html" title="length, or access to elements">#</a></div>
<hr/>
<div><h1># -- length, or access to elements</h1>
<div class="single"><h2>Description</h2>
<div>The precedence of <tt>#</tt> when used as a binary operator is high, as high as <tt>.</tt>, but the precedence when used as a unary operator is lower, as low as adjacency or function application.</div>
</div>
<div class="single"><h2>See also</h2>
<ul><li><span><a href="__sh_qu.html" title="check for presence of elements">#?</a> -- check for presence of elements</span></li>
</ul>
</div>
<div class="waystouse"><h2>Ways to use <tt>#</tt> :</h2>
<ul><li><span><a href="__sh_sp__Basic__List.html" title="length"># BasicList</a> -- length</span></li>
<li><span><a href="__sh_sp__Hash__Table.html" title="length"># HashTable</a> -- length</span></li>
<li><span><a href="__sh_sp__Set.html" title="cardinality"># Set</a> -- cardinality</span></li>
<li><span><a href="__sh_sp__String.html" title="length"># String</a> -- length</span></li>
<li><span><a href="___Basic__List_sp_sh_sp__Z__Z.html" title="get element from list">BasicList # ZZ</a> -- get element from list</span></li>
<li><span><a href="___Database_sp_sh_sp__String.html" title="get value from database">Database # String</a> -- get value from database</span></li>
<li><span><a href="___Hash__Table_sp_sh_sp__Thing.html" title="get value from hash table">HashTable # Thing</a> -- get value from hash table</span></li>
<li><span><a href="___String_sp_sh_sp__Z__Z.html" title="get character from string">String # ZZ</a> -- get character from string</span></li>
</ul>
</div>
<div class="waystouse"><h2>For the programmer</h2>
<p>The object <a href="__sh.html" title="length, or access to elements">#</a> is <span>a <a href="___Keyword.html">keyword</a></span>.</p>
</div>
</div>
</body>
</html>
