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Figure 7 | Journal of NeuroEngineering and Rehabilitation

Figure 7

From: A biologically inspired neural network controller for ballistic arm movements

Figure 7

Module and Phase Error. Considering the movement directed from the starting point (xp, yp) to the arrival point (xa, ya), the module error (or amplitude error) |e| is the distance between (xtp, ytp) and (xa, ya); the phase error (or the direction error) is the angular difference between the segment connecting (xp, yp) and (xt, yt) and the segment connecting (xp, yp) and (xa, ya).

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