Scripts in MATLAB
A script file is an ordinary MATLAB file that could contain any code except a class definition. See the following example which creates and displays a magic square.
Example 1:
Matlab
% MATLAB Code mag = magic(5); disp(mag) |
We create a script file named geeks.m and write the above code into it. Output:
Now, a script file can also contain a function definition in it. The syntax for the same is
—code—
— Function Definitions—
It is mandatory that the function definitions must be written after all the codes in the script.
While declaring functions in a script file, keep the following things in mind:
- Function definitions must be written after all code in script file.
- File name does not necessarily need to be same as function name.
- All the declared functions will be local functions to that script.
In the following example, we will create a function to calculate the factorial of a given number and call it in the same script.
Example 2:
Matlab
% MATLAB code fac = fact(5) %function to calculate factorial function y=fact(n) if(n<=0) y=1; else y=n*fact(n-1); endend |
Output:
Scripts and Functions in MATLAB
In MATLAB there are a different kinds of files dedicated to MATLAB codes. They are the following:
- Script
- Live Script
- Function only file
- Class file
Now only the live script is the only one of these which has a different extension name; all other three use the standard .m extension. In this article, we shall compare the script and function files.