Why operators drive computation in MATLAB - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to multiply two numbers and store the result.

MATLAB

result = 5 [1] 3;

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

A*

B+

C-

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using + instead of * results in addition, not multiplication.

The * operator multiplies two numbers in MATLAB.

2fill in blank

medium

Complete the code to subtract 4 from 10.

MATLAB

difference = 10 [1] 4;

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

A-

B*

C+

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using + adds numbers instead of subtracting.

The - operator subtracts the right number from the left.

3fill in blank

hard

Fix the error in the code to divide 20 by 5.

MATLAB

quotient = 20 [1] 5;

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

A*

B+

C/

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using * multiplies instead of dividing.

The / operator divides the left number by the right number in MATLAB.

4fill in blank

hard

Fill both blanks to create a vector with elements from 1 to 10, stepping by 2.

MATLAB

vec = [1]:[2]:10;

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

A1

B2

C3

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using 3 as step skips numbers incorrectly.

The colon operator start:step:end creates a vector from start to end with the given step size.

5fill in blank

hard

Fill all three blanks to create a structure with fields 'name', 'age', and 'score'.

MATLAB

student = struct('[1]', 'Alice', '[2]', 20, '[3]', 95);

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

Aname

Bage

Cscore

Dgrade

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'grade' instead of 'score' changes the field name.

The struct function creates a structure with named fields. The field names must be strings.