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matlabinterpolationspatialcubic-spline

Interpolation - can anyone explain it better?


enter image description here

vq3 = grid data interpolations with methods 'cubic' (matrix 21x21)

vq = interpolated values (matrix 21x21)

I don't understand what j,j is?


Solution

  • This equation is referring to the diagonal elements. You can see this by visualizing the matrix at each cell with co-ordinates row =j, column =j.