spline API

inline auto splinart::spline(const xt::xtensor<double, 1> &xs, const xt::xtensor<double, 2> &ys)

Return the second derivative of a cubic spline.

Parameters:

• xs – The x coordinate of the cubic spline.

• ys – The y coordinate of the cubic spline.

Returns:

The second derivative of the cubic spline.

inline void splinart::splint(const xt::xtensor<double, 1> &xs, const xt::xtensor<double, 2> &ys, const xt::xtensor<double, 2> &y2s, xt::xtensor<double, 1> &x, xt::xtensor<double, 2> &y)

Evaluate a sample on a cubic spline.

Parameters:

• xs – The x coordinates of the cubic spline.

• ys – The y coordinates of the cubic spline.

• y2s – The second derivative of the cubic spline.

• x – The sample where to evaluate the cubic spline.

• y – The output coordinates of the sample.