This is one of the classic functions. We have examined this function at a small interval from 0 to 3. The function will increase the oscillation frequency by increasing x.
Graph17. Function applied Cubic Spline interpolation. This simple and efficient Cubic Spline matches well this function at an interval ([0,3]).
Graph18. Function applied Cubic Spline. This is the detailed graph of one of the minimums.
Visual Plotter 
- Cubic Spline Interpolation 8 
applied Cubic Spline interpolation. This simple and efficient Cubic Spline matches well this function at an interval ([0,3]). 
applied Cubic Spline. This is the detailed graph of one of the minimums.