Chapter 7

Function M-files

Abstract

The objective of this chapter is to enable you to write your own function M-files. We have already seen that MATLAB has a number of built-in (compiled) functions, e.g., sin, sqrt, sum. You can verify that they are built-in by attempting to type them. Try type sin for example. MATLAB also has some functions in the form of function M-files, e.g., fzero, why. You can see what's in them with type, e.g., type why. Functions are indispensable when it comes to breaking a problem down into manageable logical pieces. Hence, MATLAB enables you to create your own function M-files. A function M-file is similar to a script file in that it also has an .m extension. However, a function M-file differs from a script file ...

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