Workspace and variable management in MATLAB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a variable named x with the value 10.

MATLAB

x = [1];

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

Ax

B'x'

C10

D10;

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the number in quotes, which creates a string instead of a number.

Using the variable name on the right side instead of a value.

The variable x is assigned the numeric value 10 using x = 10;.

2fill in blank

medium

Complete the code to clear the variable y from the workspace.

MATLAB

clear [1];

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

Ay

Bx

Cclear

Dworkspace

Attempts:

3 left

💡 Hint

Common Mistakes

Using clear without specifying the variable name clears all variables.

Typing the command incorrectly, like clear workspace.

The command clear y; removes the variable y from the workspace.

3fill in blank

hard

Fix the error in the code to list all variables currently in the workspace.

MATLAB

vars = [1];

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

Awhos

Bwho()

Clistvars

Dvariables

Attempts:

3 left

💡 Hint

Common Mistakes

Using who() with parentheses, which is incorrect syntax in MATLAB.

Using non-existent commands like listvars or variables.

The whos command lists detailed information about variables in the workspace.

4fill in blank

hard

Fill both blanks to save variables a and b to a file named data.mat.

MATLAB

save('[1]', [2]);

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

Adata.mat

B'a', 'b'

Da b

Attempts:

3 left

💡 Hint

Common Mistakes

Putting variable names in quotes as a single string.

Not quoting the filename.

Separating variable names with commas.

The save command saves variables a and b to the file data.mat. Variable names are listed without quotes separated by spaces.

5fill in blank

hard

Fill all three blanks to load variables m and n from the file mydata.mat into the workspace.

MATLAB

load('[1]', '[2]', '[3]');

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

Amydata.mat

Bm

Cn

Ddata.mat

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the filename or variable names.

Using the wrong filename.

Listing variables without quotes.

The load command loads variables m and n from the file mydata.mat. The filename and variable names are all strings in quotes.