Script files and editor in MATLAB

Introduction

Script files let you save and run a set of commands all at once. The editor helps you write and fix these commands easily.

You want to repeat a set of calculations without typing them again.

You need to save your work to share with others or use later.

You want to organize your commands in one place for a project.

You want to test different ideas by editing and running code quickly.

You want to avoid mistakes by checking your code in the editor before running.

Syntax

MATLAB

% Save commands in a file with .m extension
% Example: myscript.m

% Commands go here
x = 5;
y = x^2;
disp(y);

Script files have the extension .m and contain MATLAB commands.

You run a script by typing its name (without .m) in the command window or pressing Run in the editor.

Examples

This script prints a greeting message when run.

MATLAB

% Example script: hello.m
disp('Hello, world!')

This script calculates and shows the square of a number.

MATLAB

% Example script: square.m
x = 3;
y = x^2;
disp(['Square of ', num2str(x), ' is ', num2str(y)])

Sample Program

This script calculates the area of a rectangle and shows the result.

MATLAB

% Filename: example_script.m
% This script calculates area of a rectangle
length = 7;
width = 4;
area = length * width;
disp(['Area is: ', num2str(area)])

Important Notes

Always save your script with a meaningful name to find it easily later.

The editor highlights errors and helps you fix them before running.

You can run scripts multiple times with different values by editing and saving.

Summary

Script files let you save and run groups of commands easily.

The editor helps write, check, and run scripts smoothly.

Use scripts to organize your work and avoid retyping commands.