Good morning!
I have a set of discrete data points from which I need to interpolate new values. My (neophyte) mathematical research suggests that cubic spline interpolation gives the best result with the least amount of calculation overhead.
I expected to find any number of functions in PHP (input two x,y points, and a point to interpolate: output the interpolated point) but cannot find any. I find C/C++ code, Matlab, even VBA. I could probably port some of that code over, but can anyone point me to so tested-ready-to-run code?
Thanks!
