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    <title>MaplePrimes - answers and comments on Question, "preopt" command</title>
    <link>http://www.mapleprimes.com/questions/140563-preopt-Command</link>
    <language>en-us</language>
    <copyright>2026 Maplesoft, A Division of Waterloo Maple Inc.</copyright>
    <generator>Maplesoft Document System</generator>
    <lastBuildDate>Tue, 09 Jun 2026 11:13:57 GMT</lastBuildDate>
    <pubDate>Tue, 09 Jun 2026 11:13:57 GMT</pubDate>
    <itunes:subtitle />
    <itunes:summary />
    <description>The latest answers and comments added to the Question, "preopt" command</description>
    <image>
      <url>http://www.mapleprimes.com/images/mapleprimeswhite.jpg</url>
      <title>MaplePrimes - answers and comments on Question, "preopt" command</title>
      <link>http://www.mapleprimes.com/questions/140563-preopt-Command</link>
    </image>
    <item>
      <title>preopt</title>
      <link>http://www.mapleprimes.com/questions/140563-preopt-Command?ref=Feed:MaplePrimes:"preopt" command:Comments#answer140566</link>
      <itunes:summary>&lt;p&gt;It is an inert function used by some Multibody components as a flag to indicate special handling (used by the engine). In equations it is generally safe to replace it with its argument.&amp;nbsp; That is preopt(some_expr) is equivalent to some_expr.&lt;/p&gt;</itunes:summary>
      <description>&lt;p&gt;It is an inert function used by some Multibody components as a flag to indicate special handling (used by the engine). In equations it is generally safe to replace it with its argument.&amp;nbsp; That is preopt(some_expr) is equivalent to some_expr.&lt;/p&gt;</description>
      <guid>140566</guid>
      <pubDate>Tue, 20 Nov 2012 09:15:31 Z</pubDate>
      <itunes:author>Joe Riel</itunes:author>
      <author>Joe Riel</author>
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    <item>
      <title>Thank you!!</title>
      <link>http://www.mapleprimes.com/questions/140563-preopt-Command?ref=Feed:MaplePrimes:"preopt" command:Comments#comment140567</link>
      <itunes:summary>&lt;p&gt;Thanks for your quick response, Joe Riel!!&lt;/p&gt;
&lt;p&gt;I now understood what the preopt means and realized why preopt does not appear in any helps.&lt;/p&gt;
&lt;p&gt;Thanks for your help, now I can concentrate on analyzing the equation I got...&lt;/p&gt;</itunes:summary>
      <description>&lt;p&gt;Thanks for your quick response, Joe Riel!!&lt;/p&gt;
&lt;p&gt;I now understood what the preopt means and realized why preopt does not appear in any helps.&lt;/p&gt;
&lt;p&gt;Thanks for your help, now I can concentrate on analyzing the equation I got...&lt;/p&gt;</description>
      <guid>140567</guid>
      <pubDate>Tue, 20 Nov 2012 09:31:37 Z</pubDate>
      <itunes:author>yhatagishi</itunes:author>
      <author>yhatagishi</author>
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