Develop computer program in MATLAB that will have a calling program that calls a self-written function to evaluate the function: by its series. The calling program is to evaluate the function by an arithmetic statement. The input argument to the self-written function is to be an element of the x vector which ranges from -0.9 to +0.9 in steps of 0.1. The output of the self-written function is to go to the calling program and is to be the values of f (x) at the input values. In the calling program create a table containing x, f (x) by the arithmetic statement and f (x) by its series. Plot f (x) vs. x. Solution Examples of simple MATLAB functions Herein we present an example of a simple function that calculates the area of a trapezoidal cross-section in an open channel, given the bottom width, b, the side slope z, and the flow depth y (see the figure below). + b 1 Y z T rapezoidal cross-section function [A] = Area(b,y,z) %|---------------------------------------------| %| Calculation of the area of a trapezoidal | %| open-channel cross-section. | %| | %| Variables used: | %| =============== | %| b = bottom width (L) | %| y = flow depth (L) | %| z = side slope (zH:1V, dimensionless) | %| A = area (L*L, optional in lhs) | %|---------------------------------------------| A = (b+z*y)*y;.