U

Matern-correlated high-pass-filtered velocity of N splines at points tq

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Returns

• U \(Q \times N\) matrix

Discussion

Returns the \(Q \times N\) matrix containing the matern-correlated high-pass filtered first-derivative of the splines at the quadrature points tq. This is U = L\(Vq*Phf)

This is value is not cached.