Module 4 Data Fitting

1. Understand the difference between approximation and interpolation.
2. Understand the least squares method of data approximation.
3. Be able to use Matlab to fit different degree polynomial functions to a data set.
4. Be able to use Matlab to manipulate data to fit non-polynomial functions, like exponential, to a data set.
5. Know how and when to use the polyfit function in Matlab.
6. Know how and when to use the polyval function in Matlab.
7. Know how and when to use the splines function in Matlab.
8. Be able to plot data sets as individual points and the curves that approximate or interpolate them on the same plot figure.