WOLFRAM SYSTEM MODELER
    equalityConstraintReturn the constraint residues to express that two frames have the same orientation  | 
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SystemModel["Modelica.Mechanics.MultiBody.Frames.Orientation.equalityConstraint"]

This information is part of the Modelica Standard Library maintained by the Modelica Association.
residue = Orientation.equalityConstraint(R1, R2);
The function call Orientation.equalityConstrain(R1,R2) returns the Real residue vector
with 3 elements. This vector has zero elements if orientation objects R1 and R2 are identical
(= describe the same orientation). The residue vector is determined by computing the relative
orientation object between R1 and R2 and using the outer-diagonal elements of this matrix to
formulate the residue in such a way that only identical orientation objects lead to a zero residue vector.
| R1 | 
         Type: Orientation Description: Orientation object to rotate frame 0 into frame 1  | 
    
|---|---|
| R2 | 
         Type: Orientation Description: Orientation object to rotate frame 0 into frame 2  | 
    
| residue | 
         Type: Real[3] Description: The rotation angles around x-, y-, and z-axis of frame 1 to rotate frame 1 into frame 2 for a small rotation (should be zero)  | 
    
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