To experiment with Cubic Splines select a node with your mouse and drag the node to the desired location. You can also choose the random button to have the nodes move randomly. See the note below for a description of a Cubic Spline.
Cubic splines are the most popular spline functions.
Thus, we have 4n-2 constraints leaving 2 degrees of freedom for choosing the coefficients. This constraint is what has been chosen for the above cubic spline. This page has been accessed 1276 times.