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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>epsilon</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../E.html" title="E"/><link rel="previous" href="epoch.html" title="epoch"/><link rel="next" href="epsilon-squared.html" title="epsilon squared"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">epsilon</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="epoch.html">Prev</a> </td><th width="60%" align="center">E</th><td width="20%" align="right"> <a accesskey="n" href="epsilon-squared.html">Next</a></td></tr></table><hr/></div><dt><a id="epsilon"/><dt xmlns="" id="epsilon"><b>epsilon</b></dt></dt><dd><p> [see <a href="../D/delta.html"><i class="glossterm">delta</i></a>] </p></dd><dd><p> 1. <span class="grammar">n.</span> A small quantity of
anything. &#8220;<span class="quote">The cost is epsilon.</span>&#8221; </p></dd><dd><p> 2. <span class="grammar">adj.</span> Very small, negligible;
less than <a href="../M/marginal.html"><i class="glossterm">marginal</i></a>. &#8220;<span class="quote">We can get this feature
for epsilon cost.</span>&#8221; </p></dd><dd><p> 3. <span class="firstterm">within epsilon of</span>: close
enough to be indistinguishable for all practical purposes, even closer than
being <span class="firstterm">within delta of</span>. &#8220;<span class="quote">That's
not what I asked for, but it's within epsilon of what I wanted.</span>&#8221;
Alternatively, it may mean not close enough, but very little is required to
get it there: &#8220;<span class="quote">My program is within epsilon of
working.</span>&#8221;</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="epoch.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../E.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="epsilon-squared.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">epoch </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> epsilon squared</td></tr></table></div></body></html>