Relational expressions in MATLAB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if variable a is greater than 10.

MATLAB

result = (a [1] 10);

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

A<

B>

C==

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using < instead of >.

Using == which checks equality, not greater than.

The symbol > checks if a is greater than 10.

2fill in blank

medium

Complete the code to check if variable x is less than or equal to 5.

MATLAB

flag = (x [1] 5);

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

A<=

B>=

C==

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using >= which means greater than or equal.

Using == which checks equality only.

The symbol <= checks if x is less than or equal to 5.

3fill in blank

hard

Fix the error in the code to correctly check if y is not equal to 0.

MATLAB

isNonZero = (y [1] 0);

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

A~=

B!=

C==

D=

Attempts:

3 left

💡 Hint

Common Mistakes

Using != which is invalid in MATLAB.

Using = which is assignment, not comparison.

In MATLAB, ~=` means 'not equal to'. The symbol != is not valid in MATLAB.

4fill in blank

hard

Fill both blanks to create a logical array that is true where elements of vector v are greater than 3 and less than 8.

MATLAB

result = (v [1] 3) & (v [2] 8);

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

A>

B<

C>=

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using >= or <= which include equality, not asked here.

Swapping the symbols causing wrong logic.

The expression checks if elements are greater than 3 and less than 8 using > and <.

5fill in blank

hard

Fill all three blanks to create a logical array that is true where elements of array a are less than or equal to 10, greater than 0, and not equal to 5.

MATLAB

result = (a [1] 10) & (a [2] 0) & (a [3] 5);

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

A<=

B>

C~=

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using == instead of ~=` for not equal.

Mixing up <= and <.

Using invalid operators like !=.

The code checks three conditions: less than or equal to 10 (<=), greater than 0 (>), and not equal to 5 (~=`).