Anonymous functions in MATLAB - Mini Project: Build & Apply

Using Anonymous Functions in MATLAB

📖 Scenario: You are working on a simple calculator that can quickly compute squares of numbers. Instead of writing a full function file, you want to use a quick, small function that you can use immediately.

🎯 Goal: Create an anonymous function in MATLAB that calculates the square of a number, then use it to find the square of a given number.

📋 What You'll Learn

Create an anonymous function called square that takes one input and returns its square.

Use the square function to calculate the square of the number 7.

Display the result using disp.

💡 Why This Matters

🌍 Real World

Anonymous functions are useful for quick calculations or passing small functions as arguments without creating separate files.

💼 Career

Many engineering and data analysis jobs use MATLAB, and knowing anonymous functions helps write concise and efficient code.

1

Create an anonymous function

Create an anonymous function called square that takes one input x and returns x^2.

MATLAB

% Create an anonymous function called square
% Your code here

Need a hint?

Use the syntax variable = @(input) expression; to create an anonymous function.

2

Assign the number to square

Create a variable called num and set it to 7.

MATLAB

square = @(x) x.^2;
% Create a variable num and set it to 7
% Your code here

Need a hint?

Just assign the value 7 to the variable num.

3

Calculate the square using the anonymous function

Use the anonymous function square to calculate the square of num and store the result in a variable called result.

MATLAB

square = @(x) x.^2;
num = 7;
% Calculate the square of num using square function
% Your code here

Need a hint?

Call the anonymous function like a normal function: result = square(num);.

4

Display the result

Use disp to display the value of result.

MATLAB

square = @(x) x.^2;
num = 7;
result = square(num);
% Display the result
% Your code here

Need a hint?

Use disp(result); to show the output.