title: Reading input m-file in a main m-file
body: <p>I would like MATLAB to tell me if I have an input file (.m file) that contains some variables with their numbers (i.e., <code>a = 5</code>, <code>b = 6</code>, <code>c = 7</code>) so that I can then use that .m file in another program (main .m file) that uses these variables to calculate <code>S = a + b + c</code>. How can I then read the input file from the main file? Assume the input file is called INP and the main MAIN.</p>