Cubic spline interpolation
This tools performs and visualizes a cubic spline interpolation for a given set of points.
Syntax for entering a set of points:
Spaces separate x- and y-values of a point and a
Newline distinguishes the next point. Hit the button Show example to see a demo.
The algorithm calculates a "natural" spline: The boundary splines turn into a straight line (the second derivative is equal to zero in the end points).