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  <title>COMSOL Forums: Entering an expression that requires an integral</title>
  <link>http://www.comsol.com/community/forums/general/thread/4037/</link>
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  <pubDate>Sat, 20 Mar 2010 04:07:36 +0000</pubDate>
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   <title>COMSOL Forums: Entering an expression that requires an integral</title>
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   <title>Entering an expression that requires an integral</title>
   <link>http://www.comsol.com/community/forums/general/thread/4037/#p10445</link>
   <description>I need to be able to enter an expression that contains a number of variables. One of which is the integral of the term that will be entered in. For example:   the expression might be a+b*y, but 'a' is actually the integral of 'adot' which is what is entered as another expression. How would I go about doing this?&lt;br /&gt;&#13;
&lt;br /&gt;&#13;
Stated another way, I need to be able to enter an expression into comsol, then have comsol integrate the expression before using the integrated value in another expression. &lt;br /&gt;&#13;
&lt;br /&gt;&#13;
adot would be the derivative wrt psuedotime.&lt;br /&gt;&#13;
&lt;br /&gt;&#13;
Thanks in advance.&lt;br /&gt;&#13;
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   <pubDate>Sat, 20 Mar 2010 04:07:36 +0000</pubDate>
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