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I am not sure that I have understood the difference between a Jordan neural network and a NARX. Since they both take exogenous variables as inputs and previous outputs as additional inputs, is the ...

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A state-space representation can also be used for systems with multiple inputs and multiple outputs (MIMO), but we will primarily focus on single-input, single-output (SISO) systems in these tutorials. To introduce the state-space control design method, we will use the magnetically suspended ball as an example.

1 Answer1. Active Oldest Votes. 1. The quaternion q that will rotate v 1 to v 2, that is, will make q ∗ v 1 = v 2, is q = v 2 ∗ v 1 − 1, where v 1 ∗ is the conjugate of v 1. But since v 1 in particular is a unit vector, v 1 − 1 = v 1 ∗ | v 1 | 2 = − v 1 1 = − v 1. So q = − v 2 ∗ v 1.