Cubic Splines (Matlab)(a) Use Matlab to create a regular grid x of data points in the range from 0 to 10 with a grid spacing h = 0:5. Calculate an array y of values of the sine function at the data points in x. Then generate a second grid xx of points in the interval 0 to 10 with a spacing of h = 0:1. Use the Matlab function spline to evaluate the natural cubic spline that interpolates the data points stored in the arrays x,y at on the points of the ner grid xx. (b) Plot the results of part (a).