MATLAB Desktop and Command Window - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to display the text 'Hello, MATLAB!' in the Command Window.

MATLAB

disp([1]);

Drag options to blanks, or click blank then click option'

A'Hello, MATLAB!'

BHello, MATLAB!

C"Hello, MATLAB!"

Ddisp('Hello, MATLAB!')

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to use quotes around the text.

Using double quotes instead of single quotes in older MATLAB versions.

The disp function displays text in the Command Window. The text must be enclosed in single quotes to be treated as a string.

2fill in blank

medium

Complete the code to assign the value 10 to a variable named 'x' in the Command Window.

MATLAB

[1] = 10;

Drag options to blanks, or click blank then click option'

Avalue

Bvar

Cx

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Using a number as a variable name.

Putting the value on the left side.

In MATLAB, you assign values to variables using the equals sign. Here, x is the variable name.

3fill in blank

hard

Fix the error in the code to correctly clear the variable 'data' from the workspace.

MATLAB

clear [1];

Drag options to blanks, or click blank then click option'

Adata

B'data'

C"data"

Dclear data

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around the variable name.

Typing the whole command inside the blank.

The clear command removes variables by name without quotes. Using quotes causes an error.

4fill in blank

hard

Fill both blanks to create a 1-by-5 vector named 'v' with values from 1 to 5 and display it.

MATLAB

[1] = [2]; disp(v);

Drag options to blanks, or click blank then click option'

Av

B1:5

Czeros

Dones

Attempts:

3 left

💡 Hint

Common Mistakes

Using zeros or ones instead of the range.

Not assigning to a variable.

We assign the vector 1:5 to variable v. The disp function then shows it.

5fill in blank

hard

Fill all three blanks to create a script that prompts the user for their name, stores it in 'userName', and then greets them.

MATLAB

userName = [1]('Enter your name: ', '[2]'); fprintf('Hello, %[3]s!\n', userName);

Drag options to blanks, or click blank then click option'

Ainput

B's'

Cformat

D'string'

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the 's' argument in input.

Using wrong format specifier in fprintf.

The input function asks the user for input. The second argument 's' tells MATLAB to treat input as a string. The fprintf uses %s to print the string.