please solve with matlab code

b) on top of this plot, also plot the results of MATLAB spline interpolant using built-in function "spline" (use help to learn more on spline command) zz=1 inspace (0,16.1); TS =spline(z,T,zz); plot(zz,TS) orselect a different color if you like Jse cubic splines to determine the thermocline depth for a Lake for which the Temperature vs Depth data is given as follows