Hicks-henne bump function

This function creates a set of y-coordinates as a function of x coordinate, location, width, and magnitude of bumps based on Hicks-Henne bump function. The Hicks-Henne bump function is particularly useful for aerodynamic purpose such as altering the base geometry for airfoil optimization or to model uncertainties on the geometries of an airfoil.
Examples of use : To create y-coordinates with three bumps, scale factor of 1, width of 2, and the unity magnitudes of all bumps, with 100 coordinates, type the following codes:

b = hickshenne(100,[0.2 0.4 0.6],2,1,[1 1 1]);

The code is easy to be modified for your own needs. Please contact me if there is any question or bug in the code.