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rotation_table · Changes

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cmirajak created page: rotation_table authored Sep 20, 2016 by Cmíral Jakub's avatar Cmíral Jakub
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rotation_table.md
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...@@ -52,12 +52,11 @@ That mean the rotation vector is an eigenvector of the rotation matrix ![alt tex ...@@ -52,12 +52,11 @@ That mean the rotation vector is an eigenvector of the rotation matrix ![alt tex
### Translation vector ### Translation vector
As you can see on the picture above when we translate vector ![alt text](http://mathurl.com/gwoqjj3.png) by the vector ![alt text](http://mathurl.com/jntzz6q.png) and rotate it with the rotation matrix ![alt text](http://mathurl.com/5unln6.png) we will end-up at same place. To simplify equation we call ![alt text](http://mathurl.com/zeh2wcc.png)
The translation vector ![alt text](http://mathurl.com/hrfjerk.png) must satisfy that it remain same when transformed. So we get:
![alt text](http://mathurl.com/hz8h7pf.png) ![alt text](http://mathurl.com/hz8h7pf.png)
However, this equation have multiple solution in a 3D space. So we must add an other condition to this to clarify the solution. We know that both origins are rotating in a plane with normal vector ![alt text](http://mathurl.com/jm7yc4a.png) from previous. Moreover, the normal vector must be perpendicular with the vector ![alt text](http://mathurl.com/hrfjerk.png). We can add a following condition: However, this equation have multiple solutions in a 3D space. So we must add an other condition to this to clarify the solution. We know that both origins are rotating in a plane with normal vector ![alt text](http://mathurl.com/jm7yc4a.png) from previous. Moreover, the normal vector must be perpendicular with the vector ![alt text](http://mathurl.com/hrfjerk.png). We can add a following condition:
![alt text](http://mathurl.com/hb4t2zq.png) ![alt text](http://mathurl.com/hb4t2zq.png)
......
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