Sophie

Sophie

distrib > Fedora > 15 > i386 > by-pkgid > 7ebd25ac536d248d499a3ce2acda963a > files > 1411

Macaulay2-1.3.1-8.fc15.i686.rpm

<?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>taylor -- Gives the nth differential in the Taylor resolution of a monomial ideal I.</title>
<link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/>
</head>
<body>
<table class="buttons">
  <tr>
    <td><div><a href="_taylor__Resolution.html">next</a> | <a href="_substitute_lp__Chain__Complex_cm__Ring_rp.html">previous</a> | <a href="_taylor__Resolution.html">forward</a> | <a href="_substitute_lp__Chain__Complex_cm__Ring_rp.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>taylor -- Gives the nth differential in the Taylor resolution of a monomial ideal I.</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>T = taylor(n,I)</tt></div>
</dd></dl>
</div>
</li>
<li><div class="single">Inputs:<ul><li><span><tt>n</tt>, </span></li>
<li><span><tt>I</tt>, </span></li>
</ul>
</div>
</li>
<li><div class="single">Outputs:<ul><li><span>T, the nth differential in the Taylor Resolution of I.</span></li>
</ul>
</div>
</li>
</ul>
</div>
<div class="single"><h2>Description</h2>
<div><table class="examples"><tr><td><pre>i1 : R = ZZ/101[a,b]

o1 = R

o1 : PolynomialRing</pre>
</td></tr>
<tr><td><pre>i2 : I = monomialIdeal (ideal vars R)^3

                     3   2      2   3
o2 = monomialIdeal (a , a b, a*b , b )

o2 : MonomialIdeal of R</pre>
</td></tr>
<tr><td><pre>i3 : T2 = taylor(2,I)

o3 = {3} | -b -b2 0  -b3 0   0  |
     {3} | a  0   -b 0   -b2 0  |
     {3} | 0  a2  a  0   0   -b |
     {3} | 0  0   0  a3  a2  a  |

             4       6
o3 : Matrix R  &lt;--- R</pre>
</td></tr>
<tr><td><pre>i4 : T3 = taylor(3,I)

o4 = {4} | b  b2 0  0  |
     {5} | -1 0  b  0  |
     {4} | a  0  0  b  |
     {6} | 0  -1 -1 0  |
     {5} | 0  a  0  -1 |
     {4} | 0  0  a2 a  |

             6       4
o4 : Matrix R  &lt;--- R</pre>
</td></tr>
</table>
</div>
</div>
<div class="waystouse"><h2>Ways to use <tt>taylor</tt> :</h2>
<ul><li>taylor(ZZ,MonomialIdeal)</li>
</ul>
</div>
</div>
</body>
</html>