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quaternions to direction cosine matrix (Definition)

Getting the direction cosine matrix (DCM) from quaternions is given in equation 1

⌊                 ⌋   ⌊                                                           ⌋
   A11  A12  A13         q21 − q22 − q23 + q24   2(q1q2 + q3q4)       2(q1q3 − q2q4)
⌈  A21  A22  A23  ⌉ = ⌈   2(q1q2 − q3q4)    − q2 + q2 − q2+ q2    2(q2q3 + q1q4)    ⌉
                                             1    2    3    4    2    2    2    2
   A31  A32  A33          2(q1q3 + q2q4)      2(q2q3 − q1q4)     − q1 − q2 + q3 + q4
(1)

(proof of this conversion to come)


"quaternions to direction cosine matrix" is owned by bloftin.
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Cross-references: quaternions, direction cosine matrix

This is version 1 of quaternions to direction cosine matrix, born on 2005-08-28.
Object id is 86, canonical name is QuaternionsToDirectionCosineMatrix.
Accessed 2579 times total.

Classification:
Physics Classification45.40.-f (Dynamics and kinematics of rigid bodies)
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