The ball spline, now 55 years old, is a motion component that has stood the test of time but has not stood still. Indeed, in recent years, this innovation has evolved with sizes and designs that allow ...

If you want to start to learn how to "spline" polynomial curves together into one continuous curve, this is the article for you. WARNING: The material in this series of articles is very math-intensive ...

This example then specifies a smoothed spline interpolation method on the GRID statement. As shown by the following output, the resulting surface plot is smoother still. libname reflib ...