Function handles in MATLAB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a function handle that squares a number.

MATLAB

square = [1](x) x^2;

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

A%

B#

C$

D@

Attempts:

3 left

💡 Hint

Common Mistakes

Using '#' or '$' instead of '@' to create function handles.

Forgetting the '@' symbol before the function input.

In MATLAB, function handles are created using the '@' symbol followed by the function input arguments.

2fill in blank

medium

Complete the code to call the function handle 'f' with input 5.

MATLAB

result = f[1]5;

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

A( )

B{ }

C[ ]

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets or curly braces instead of parentheses.

Omitting parentheses when calling the function handle.

Function handles are called using parentheses with the input value inside.

3fill in blank

hard

Fix the error in the function handle definition to correctly compute the cube of x.

MATLAB

cube = [1](x) x^3;

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

Afunction

B@

Chandle

Dfun

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'function' keyword instead of '@'.

Using undefined keywords like 'handle' or 'fun'.

Anonymous function handles in MATLAB start with '@', not 'function' or other keywords.

4fill in blank

hard

Fill both blanks to create a function handle 'add' that adds two inputs a and b.

MATLAB

add = [1](a, b) a [2] b;

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

A@

B+

C-

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-' or '*' instead of '+' for addition.

Forgetting the '@' symbol before the input arguments.

The '@' symbol defines the function handle, and '+' adds the two inputs.

5fill in blank

hard

Fill all three blanks to create a function handle 'powerDiff' that computes a^n minus b^n.

MATLAB

powerDiff = [1](a, b, n) a[2]n [3] b[2]n;

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

A@

B^

C-

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' instead of '-' for subtraction.

Using '*' instead of '^' for power.

Omitting '@' at the start.

Use '@' to define the function handle, '^' for power, and '-' to subtract the two results.