Replacement of Matlab codes in Chapter 5 "Data Interpolation and Data Fitting in 1D"
@jgacon @wolftho @tille A few matlab code have been moved from Chapter 6 "Approximation of Functions in 1D" to Section 6 of Chapter 5. They have already been ported to C++ and now the C++ codes need to be included in the lecture document. However, some of the ports will have to be adjusted to new codes for polynomial interpolation, see hints in TODOs.