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TermBuilder.Atan2 or ACos

Aug 14, 2013 at 7:45 PM
Is it possible to differentiate an ArcTangent or ArcCosine calculation with the current AutoDiff? I need to include some angle calculations where the angle is calculated from three points. I'm planning to invert the ol' formula cos(a) = dot(x,y)/(|x|*|y|).
Oct 6, 2013 at 8:07 AM
It is not built-int, however you may do it by defining a user-defined function.
Please look here: