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Rotation of ellipsoid using matrix

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Mirzobek Malikov
Mirzobek Malikov 2022-9-6
回答： Matt J 2022-9-6
I have ellipse matrix A^-1 and vector b by solving cvx problem. A^-1 eigenvalues are major and minor axis. But still can’t find the rotation angle of ellipsoid. If you can help it would be nice!
  2 个评论
James Tursa
James Tursa 2022-9-6
Do you have the eigenvectors? Can't you get the desired angle from those?
Mirzobek Malikov
Mirzobek Malikov 2022-9-6
i have eigenvectors. but i don’t know how to get desired angle

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Matt J
Matt J 2022-9-6
You just compute the angle between one of the eigenvectors with the x or y axis.

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