5: User-Defined Functions
- Page ID
- 84325
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- 5.1: Name Collisions
- Scripts may change external variables. Functions use local variables; they can’t change external variables.
- 5.2: Defining Functions
- A function's 1st line is it's signature.
- 5.3: Function Documentation
- You should document what the function does.
- 5.4: Naming Functions
- Function names follow the same rules as variable names. Use descriptive function names.
- 5.6: Functions with Multiple Outputs
- How to create and use MATLAB/Octave functions with multiple inputs
- 5.7: Matlab Functions with No Inputs
- Functions can have outputs, even though they have no input arguments.
- 5.8: Matlab Functions with No Outputs
- How to create and use MATLAB/Octave functions with no outputs. An example of drawing a star is given. Exercises of drawing a rectangle and a triangle are given.
- 5.9: Matlab Functions with No Inputs and No Outputs
- Some functions have no inputs and no returned variables, although they may display values, change the screen, or change a plot.
- 5.10: Functions with variable numbers of inputs or outputs
- How functions with variable numbers of inputs and/or outputs work
Most of the material in this chapter comes from Downey, chapter 5 and Lambert, chapter 8.