First MATLAB program - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the command to display text in MATLAB?

The command disp() is used to display text or variables in MATLAB.

beginner

How do you write a comment in MATLAB?

Use the percent sign % at the start of a line or after code to add a comment.

beginner

What does the following MATLAB code do?<br>

disp('Hello, world!')

It prints the text Hello, world! to the command window.

beginner

How do you run a MATLAB script named hello.m?

Type the script name hello (without .m) in the command window and press Enter.

beginner

What is the file extension for MATLAB scripts?

MATLAB scripts are saved with the .m file extension.

Which command shows text output in MATLAB?

A show()

B print()

C echo()

D disp()

The disp() command is used to display text or variables in MATLAB.

How do you start a comment in MATLAB?

A %

B #

C //

D /*

Comments in MATLAB start with the percent sign %.

What will this code print?<br>

disp('Hi!')

A Hi!

B disp('Hi!')

C Error

D Nothing

The disp() function prints the text inside the quotes.

What is the correct way to run a script named test.m?

A execute test.m

B run test.m

C test

D start test

In MATLAB, you run a script by typing its name without the .m extension.

What file extension do MATLAB scripts use?

A .mat

B .m

C .mlx

D .txt

MATLAB scripts are saved with the .m extension.

Explain how to write and run your first MATLAB program that prints 'Hello, world!'

Think about how you show messages and how you run scripts in MATLAB.

Describe how to add comments in MATLAB and why they are useful.

Comments help others and yourself understand your code.