<?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>ZZ : Thing -- repeat an item</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="___Z__Z_sp_us_sp__Module.html">next</a> | <a href="___Z__Z_sp.._lt_sp__Z__Z.html">previous</a> | <a href="___Z__Z_sp_us_sp__Module.html">forward</a> | <a href="___Z__Z_sp.._lt_sp__Z__Z.html">backward</a> | up | <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> <hr/> <div><h1>ZZ : Thing -- repeat an item</h1> <div class="single"><h2>Synopsis</h2> <ul><li><span>Operator: <a href="__co.html" title="a binary operator, uses include repetition; ideal quotients">:</a></span></li> </ul> </div> <div class="single"><h2>Description</h2> <div><tt>n : x</tt> repetition <tt>n</tt> times of <tt>x</tt> in a sequence<p/> If <tt>n</tt> is an integer and <tt>x</tt> is anything, return a sequence consisting of <tt>x</tt> repeated <tt>n</tt> times. A negative value for <tt>n</tt> will silently be treated as zero.<p/> Warning: such sequences do not get automatically spliced into lists containing them.<p/> <table class="examples"><tr><td><pre>i1 : {5:a,10:b} o1 = {(a, a, a, a, a), (b, b, b, b, b, b, b, b, b, b)} o1 : List</pre> </td></tr> <tr><td><pre>i2 : splice {5:a,10:b} o2 = {a, a, a, a, a, b, b, b, b, b, b, b, b, b, b} o2 : List</pre> </td></tr> </table> </div> </div> <div class="single"><h2>See also</h2> <ul><li><span><a href="_splice.html" title="remove subsequences">splice</a> -- remove subsequences</span></li> <li><span><a href="___Z__Z_sp.._sp__Z__Z.html" title="sequences of consecutive integers">ZZ .. ZZ</a> -- sequences of consecutive integers</span></li> <li><span><a href="_ranges_spand_sprepetitions.html" title="">ranges and repetitions</a></span></li> </ul> </div> </div> </body> </html>