PPSplineF64.bspldnev(x, i, m)

Evaluate m order derivative on the i th b-spline at x coordinates.

Repeatedly applies bspldnev_single().

Warning

The x coordinates supplied to this function are treated as float, or are converted to float. Therefore it does not guarantee the preservation of AD sensitivities.

Parameters:

• x (ndarray of float) – x-axis coordinates.

• i (int) – The index of the b-spline to evaluate.

• m (int) – The order of derivative to calculate value for.

Return type:

ndarray