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Introduction to Python for MATLAB Users

Lambda Functions

Explore Lambda function in MATLAB and Python with examples.

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A lambda function is an anonymous function in Python and MATLAB. It is often used when we only need to use a function in one place because we can define the function inline without giving it a name.

Anonymous function in MATLAB

In MATLAB, we can define a lambda function using the @ symbol followed by a list of arguments in parentheses () and a line of code. A lambda function returns the value of the line of code. Here’s an example of a lambda function in MATLAB that takes one argument and returns its square.

C
% Declaring an anonymous function
my_square_function = @(n) n.^2;
%% Call "my_square_func" function
number = 7;
number_sq = my_square_function(number);
%% Display results
fprintf('Square of %1.0f is %1.0f',number,number_sq);

Lambda function in Python

In Python, we can define a lambda function using the lambda keyword, followed by a list of arguments, a colon (:), and the function body. A lambda function returns the value of the expression after the colon. Here’s an example of a lambda function ...