Variable creation and assignment in MATLAB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to assign the value 10 to the variable x.

MATLAB

x = [1];

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

A'10'

Bx

C10

Dten

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the number 10 inside quotes, which makes it a string.

Using a variable name instead of a value.

In MATLAB, to assign a numeric value to a variable, just write the number without quotes.

2fill in blank

medium

Complete the code to assign the string 'hello' to the variable greeting.

MATLAB

greeting = [1];

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

Ahello

B'hello'

C"hello"

Dgreeting

Attempts:

3 left

💡 Hint

Common Mistakes

Using double quotes instead of single quotes for strings.

Not using quotes at all.

In MATLAB, strings are enclosed in single quotes.

3fill in blank

hard

Fix the error in the code to assign the value 5 to variable num.

MATLAB

num = [1];

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

A'5';

B5

Cnum;

D5;

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the semicolon at the end of the statement.

Putting the number inside quotes.

In MATLAB, each statement must end with a semicolon to suppress output.

4fill in blank

hard

Fill both blanks to create a variable 'result' that stores the sum of 3 and 7.

MATLAB

result = [1] [2] 7;

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

A3

B+

C-

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using subtraction or multiplication instead of addition.

Swapping the order of numbers and operators.

To add 3 and 7, use the plus sign (+) between them.

5fill in blank

hard

Fill all three blanks to create a variable 'area' that stores the product of length and width.

MATLAB

area = [1] [2] [3];

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

Alength

B*

Cwidth

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using addition instead of multiplication.

Mixing up variable names.

To calculate area, multiply length by width using the * operator.