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<title>ATC: fix_modify AtC fix</title>
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<h1><a class="anchor" id="man_fix_nodes">fix_modify AtC fix </a></h1><h2><a class="anchor" id="syntax">
syntax</a></h2>
<p>fix_modify AtC fix &lt;field&gt; &lt;nodeset&gt; &lt;constant | function&gt;</p>
<ul>
<li>&lt;field&gt; = field name valid for type of physics</li>
<li>&lt;nodeset&gt; = name of set of nodes to apply boundary condition</li>
<li>&lt;constant | function&gt; = value or name of function followed by its parameters </li>
</ul>
<h2><a class="anchor" id="examples">
examples</a></h2>
<p><code> fix_modify AtC fix temperature groupNAME 10. </code> <br/>
<code> fix_modify AtC fix temperature groupNAME 0 0 0 10.0 0 0 1.0 </code> <br/>
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<h2><a class="anchor" id="description">
description</a></h2>
<p>Creates a constraint on the values of the specified field at specified nodes. </p>
<h2><a class="anchor" id="restrictions">
restrictions</a></h2>
<p>keyword 'all' reserved in nodeset name </p>
<h2><a class="anchor" id="related">
related</a></h2>
<p>see <a class="el" href="man_unfix_nodes.html">fix_modify AtC unfix</a> </p>
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default</a></h2>
<p>none </p>
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