Sophie

Sophie

distrib > Fedora > 15 > i386 > by-pkgid > 7ebd25ac536d248d499a3ce2acda963a > files > 4963

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>quotient(Matrix,GroebnerBasis) -- matrix quotient</title>
<link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/>
</head>
<body>
<table class="buttons">
  <tr>
    <td><div><a href="_quotient__Remainder.html">next</a> | <a href="_quotient_lp__Ideal_cm__Ideal_rp.html">previous</a> | <a href="_quotient__Remainder.html">forward</a> | <a href="_quotient_lp__Ideal_cm__Ideal_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>quotient(Matrix,GroebnerBasis) -- matrix quotient</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>(q,r) = quotient(f,g)</tt></div>
</dd></dl>
</div>
</li>
<li><span>Function: <a href="_quotient.html" title="quotient or division">quotient</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>f</tt>, <span>a <a href="___Matrix.html">matrix</a></span></span></li>
<li><span><tt>g</tt>, <span>a <a href="___Groebner__Basis.html">Groebner basis</a></span>, <span>a <a href="___Groebner__Basis.html">Groebner basis</a></span> or <span>a <a href="___Matrix.html">matrix</a></span>, with the same target as <tt>f</tt></span></li>
</ul>
</div>
</li>
<li><div class="single">Outputs:<ul><li><span><tt>q</tt>, <span>a <a href="___Matrix.html">matrix</a></span>, the quotient of <tt>f</tt> upon division by <tt>g</tt></span></li>
</ul>
</div>
</li>
<li><div class="single"><a href="_using_spfunctions_spwith_spoptional_spinputs.html">Optional inputs</a>:<ul><li><span><a href="_quotient_lp..._cm_sp__Basis__Element__Limit_sp_eq_gt_sp..._rp.html">BasisElementLimit => ...</a>, </span></li>
<li><span><a href="_quotient_lp..._cm_sp__Degree__Limit_sp_eq_gt_sp..._rp.html">DegreeLimit => ...</a>, </span></li>
<li><span><a href="_quotient_lp..._cm_sp__Minimal__Generators_sp_eq_gt_sp..._rp.html">MinimalGenerators => ...</a>,  -- Decides whether quotient computes and outputs a trimmed set of generators; default is true</span></li>
<li><span><a href="_quotient_lp..._cm_sp__Pair__Limit_sp_eq_gt_sp..._rp.html">PairLimit => ...</a>, </span></li>
<li><span><a href="_quotient_lp..._cm_sp__Strategy_sp_eq_gt_sp..._rp.html">Strategy => ...</a>,  -- Possible strategies are: Iterate, Linear, and Quotient</span></li>
</ul>
</div>
</li>
</ul>
</div>
<div class="single"><h2>Description</h2>
<div>The equation <tt>g*q+r == f</tt> will hold, where <tt>r</tt> is the map provided by <a href="_remainder.html" title="matrix remainder">remainder</a>.  The source of <tt>f</tt> should be a free module.<table class="examples"><tr><td><pre>i1 : R = ZZ[x,y]

o1 = R

o1 : PolynomialRing</pre>
</td></tr>
<tr><td><pre>i2 : f = random(R^2,R^{2:-1})

o2 = | 7x+2y 3x |
     | 4x    6x |

             2       2
o2 : Matrix R  &lt;--- R</pre>
</td></tr>
<tr><td><pre>i3 : g = vars R ++ vars R

o3 = | x y 0 0 |
     | 0 0 x y |

             2       4
o3 : Matrix R  &lt;--- R</pre>
</td></tr>
<tr><td><pre>i4 : quotient(f,g)

o4 = {1} | 7 3 |
     {1} | 2 0 |
     {1} | 4 6 |
     {1} | 0 0 |

             4       2
o4 : Matrix R  &lt;--- R</pre>
</td></tr>
<tr><td><pre>i5 : f = f + map(target f, source f, id_(R^2))

o5 = | 7x+2y+1 3x   |
     | 4x      6x+1 |

             2       2
o5 : Matrix R  &lt;--- R</pre>
</td></tr>
<tr><td><pre>i6 : quotient(f,g)

o6 = {1} | 7 3 |
     {1} | 2 0 |
     {1} | 4 6 |
     {1} | 0 0 |

             4       2
o6 : Matrix R  &lt;--- R</pre>
</td></tr>
</table>
</div>
</div>
<div class="single"><h2>See also</h2>
<ul><li><span><a href="_quotient__Remainder.html" title="matrix quotient and remainder">quotientRemainder</a> -- matrix quotient and remainder</span></li>
<li><span><a href="_quotient_sq.html" title="matrix quotient (opposite)">quotient'</a> -- matrix quotient (opposite)</span></li>
</ul>
</div>
</div>
</body>
</html>