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    <title>topic Bug: Dimension equation functions do not handle units properly in Fusion Support Forum</title>
    <link>https://forums.autodesk.com/t5/fusion-support-forum/bug-dimension-equation-functions-do-not-handle-units-properly/m-p/9602437#M110504</link>
    <description>&lt;P&gt;Certain functions like "sqrt()" do not handle units properly. Suppose I define a user variable, A = 4mm in the "Change Parameters" window. Later if I try and make a dimension "sqrt(4)" it will evaluate to 2 (document units setting at the time the dimension was created). This is fine and behaves as expected. Then, if I change it to "sqrt(A)" the field will turn red and not let you submit but also not give any feedback as to why. If I then change it to "sqrt(A/1mm)" it will again evaluate to the previous result which means the problem is the function doesn't know how to handle units. I actually think this is fine that it doesn't process a user variable with dimensions in it but Fusion should give some feedback as to why it can't evaluate certain expressions as debugging is time inefficient.&lt;/P&gt;</description>
    <pubDate>Thu, 25 Jun 2020 21:26:26 GMT</pubDate>
    <dc:creator>SL_Michael</dc:creator>
    <dc:date>2020-06-25T21:26:26Z</dc:date>
    <item>
      <title>Bug: Dimension equation functions do not handle units properly</title>
      <link>https://forums.autodesk.com/t5/fusion-support-forum/bug-dimension-equation-functions-do-not-handle-units-properly/m-p/9602437#M110504</link>
      <description>&lt;P&gt;Certain functions like "sqrt()" do not handle units properly. Suppose I define a user variable, A = 4mm in the "Change Parameters" window. Later if I try and make a dimension "sqrt(4)" it will evaluate to 2 (document units setting at the time the dimension was created). This is fine and behaves as expected. Then, if I change it to "sqrt(A)" the field will turn red and not let you submit but also not give any feedback as to why. If I then change it to "sqrt(A/1mm)" it will again evaluate to the previous result which means the problem is the function doesn't know how to handle units. I actually think this is fine that it doesn't process a user variable with dimensions in it but Fusion should give some feedback as to why it can't evaluate certain expressions as debugging is time inefficient.&lt;/P&gt;</description>
      <pubDate>Thu, 25 Jun 2020 21:26:26 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-support-forum/bug-dimension-equation-functions-do-not-handle-units-properly/m-p/9602437#M110504</guid>
      <dc:creator>SL_Michael</dc:creator>
      <dc:date>2020-06-25T21:26:26Z</dc:date>
    </item>
    <item>
      <title>Re: Bug: Dimension equation functions do not handle units properly</title>
      <link>https://forums.autodesk.com/t5/fusion-support-forum/bug-dimension-equation-functions-do-not-handle-units-properly/m-p/9730704#M110505</link>
      <description>&lt;P&gt;Hey&amp;nbsp;&lt;a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/6739451"&gt;@SL_Michael&lt;/a&gt;&amp;nbsp;I believe this explanation covers the issues you ran into &lt;span class="lia-unicode-emoji" title=":slightly_smiling_face:"&gt;🙂&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;A href="https://knowledge.autodesk.com/support/fusion-360/troubleshooting/caas/sfdcarticles/sfdcarticles/Using-Square-Root-function-in-Parameter-Expressions-in-Fusion-360.html" target="_blank" rel="noopener"&gt;https://knowledge.autodesk.com/support/fusion-360/troubleshooting/caas/sfdcarticles/sfdcarticles/Using-Square-Root-function-in-Parameter-Expressions-in-Fusion-360.html&lt;/A&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;and this&amp;nbsp;&lt;A href="https://knowledge.autodesk.com/support/fusion-360/troubleshooting/caas/sfdcarticles/sfdcarticles/Error-Parameter-s-expression-edit-failed-Units-don-t-Evaluate-when-entering-a-square-root-formula-in-Fusion-360.html" target="_blank" rel="noopener"&gt;https://knowledge.autodesk.com/support/fusion-360/troubleshooting/caas/sfdcarticles/sfdcarticles/Error-Parameter-s-expression-edit-failed-Units-don-t-Evaluate-when-entering-a-square-root-formula-in-Fusion-360.html&lt;/A&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;and lastly a great page from the documentation of Fusion 360 that is always handy to have (Parameters dialog) :&lt;/P&gt;&lt;P&gt;&lt;A href="https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-76272551-3275-46C4-AE4D-10D58B408C20" target="_blank" rel="noopener"&gt;https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-76272551-3275-46C4-AE4D-10D58B408C20&lt;/A&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Fri, 04 Sep 2020 21:33:56 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-support-forum/bug-dimension-equation-functions-do-not-handle-units-properly/m-p/9730704#M110505</guid>
      <dc:creator>YoavFriedlander</dc:creator>
      <dc:date>2020-09-04T21:33:56Z</dc:date>
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