how do you create a function in matlab

To create a function in Matlab, you can follow the steps below:

Syntax


main.m
function [output_args] = function_name(input_args)
% Function description
% Inputs:
%   input_args - description
% Outputs:
%   output_args - description
% Usage:
%   [output_args] = function_name(input_args)
% Example:
%   [output_args] = function_name(input_args)
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Example

Let's create a function that receives an array of numbers and returns the sum and product of these numbers:


main.m
function [sum_values, prod_values] = calc_values(values)

% This function receives an array of numbers and returns the sum and product of these numbers

% Input:
%   values - an array of numbers
% Output:
% 	sum_values - sum of the numbers
% 	prod_values - product of the numbers

sum_values = sum(values);
prod_values = prod(values);

end
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To use this function, save it with a .m extension and call it from the command window or from another script by typing its name and passing the input arguments. For example:


main.m
>> values = [1 2 3 4 5];
>> [sum, prod] = calc_values(values);

sum =
    15

prod =
   120
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This function takes an array of numbers as input and returns the sum and product of these values as output. The sum() and prod() functions are built-in Matlab functions that sum and multiply the values of an array, respectively. The output values are returned using the output_args list at the beginning of the function definition.

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