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how to calculate quaternion difference

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manikya valli
manikya valli 2016-2-15
编辑： Matt J 2016-2-15
I have two sets of euler angles ([30,40,50] and [10,10,10]) and I want to compute difference using quaternion representation. Here is my code:
q1=angle2quat(deg2rad(30),deg2rad(40),deg2rad(50));
q2=angle2quat(deg2rad(10),deg2rad(10),deg2rad(10));
q3=quatmultiply(q1,quatconj(q2));
[r,p,y]=quat2angle(q3);
rad2deg(r)
rad2deg(p)
rad2deg(y)
The above code giving:
12.1717
37.4853
29.6621
But actually I have to get 20,30,40.What is the wrong in mycode

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