<?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>pack -- pack elements of a list into shorter ones</title>
<link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/>
</head>
<body>
<table class="buttons">
<tr>
<td><div><a href="_prepend.html">next</a> | <a href="_mingle.html">previous</a> | <a href="_prepend.html">forward</a> | <a href="_mingle.html">backward</a> | <a href="_lists_spand_spsequences.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="_lists_spand_spsequences.html" title="">lists and sequences</a> > <a href="_pack.html" title="pack elements of a list into shorter ones">pack</a></div>
<hr/>
<div><h1>pack -- pack elements of a list into shorter ones</h1>
<div class="single"><h2>Description</h2>
<div><tt>pack(n,v)</tt> -- packs the elements of the list or sequence <tt>v</tt> into a table <tt>n</tt> at a time.<p/>
It produces, from a list <tt>v</tt>, a list of lists formed by packing the elements of <tt>v</tt> into lists <tt>n</tt> at a time. The last of the lists produced may have fewer than <tt>n</tt> elements.<table class="examples"><tr><td><pre>i1 : pack(3,{a,b,c,d,e,f,g,h,i,j,k})
o1 = {{a, b, c}, {d, e, f}, {g, h, i}, {j, k}}
o1 : List</pre>
</td></tr>
</table>
</div>
</div>
<div class="waystouse"><h2>Ways to use <tt>pack</tt> :</h2>
<ul><li>pack(BasicList,ZZ)</li>
<li>pack(ZZ,BasicList)</li>
</ul>
</div>
</div>
</body>
</html>
