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   Computes the magnitude of the angular rate of the momentum vector
   given the angular momentum and a matrix of torque vectors
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   Form:
   angRateMagnitude = AngRate( angMomentumVector, torqueVector )
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   Inputs
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   angMomentumVector (3,1)  Angular momentum vector
   torqueVector      (3,:)  Matrix of torque vectors

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   Outputs
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   angRateMagnitude  (:)    Magnitude of the angular rate generated
                            by each torque in torqueVector

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