Talk:Quaternions and spatial rotation: Difference between revisions

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Recently, there was a section added with a formula for computing the derivative of a rotated vector with respect to the quaternion by which the vector was rotated ("Differentiation with respect to the rotation quaternion"). I have simulated this formula numerically, and it does not appear to be accurate. I have found an alternate source at the below linked pdf that appears to be correct. See equation 46.
 
http://web.cs.iastate.edu/~cs577/handouts/quaternion.pdf <!-- Template:Unsigned IP --><small class="autosigned">—&nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/23.119.121.46|23.119.121.46]] ([[User talk:23.119.121.46#top|talk]]) 00:14, 7 January 2017 (UTC)</small> <!--Autosigned by SineBot-->
http://web.cs.iastate.edu/~cs577/handouts/quaternion.pdf