Write MATLAB program in a script file called KKUGPPROJ012020.m that displays the following options when executed:

1.The first option [1] is to solve any number of simultaneous equations 2.he second option [2] in the main program is to plot a function.

3.The third option [3] in the main program is complex number calculator.

4.The fourth option [4] in the main program is matrix calculator.

The program must contain at least four functions that are called from the main script file. The functions should take arguments and return results.

Choose one of the following [1] Solve Simultaneous Equations [2] Plot Function [3] Complex Numbers Calculator [4] Matrix Calculations Enter number here: Choose one of the following [1] Solve Simultaneous Equations [2] Plot Function [3] Complex Numbers Calculator [4] Matrix Calculations Enter number here