Variable, function, file names
• is case sensitive, e.g., NAME and Name are 2 distinct names.
• variable begins with a letter, e.g., A2z or a2z
• can be a mix of letters, digits, and underscores (e.g., vector_A)
• reserved characters: % = + – ~ ; : ! ' [ ] ( ) , @ # $ & ^
• up to 63 characters
• A function performs a pre-defined task based on input to yield
certain outcome.
File name
• MATLAB command files should be named with a suffix of ".m", e.g.,
myfile.m. An m-file typically contains a sequence of MATLAB
commands that will be executed in order
• A file may contain a collection of commands, functions
Note: To run, enter m-file, without .m, e.g.,
>> myfile
Rules on Variables and File Names
Introduction to MATLAB
4
