Function Getqk

src/LNLib/Algorithm/Interpolation.cpp:22–25

namespace LNLib
{
	XYZ Getqk(const std::vector<XYZ>& throughPoints, int index)
	{
		return throughPoints[index] - throughPoints[index - 1];
	}

	double Getak(const XYZ& qk_1, const XYZ& qk, const XYZ& qk1, const XYZ& qk2)
	{