sub function in matlab

main.m
function [output1,output2,..] = mainFunction(input1,input2,..)
% mainFunction Definition
..
..
..
[outputA,outputB,..] = subFunction(inputX,inputY,..);
..
..
end

function [out1,out2,..] = subFunction(in1,in2,..)
% subFunction Definition
..
..
end
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main.m
function [result1,result2] = calculateSumAndAvg(numbers)
% calculateSumAndAvg: function to calculate the sum and average of a list of numbers
%
% Syntax:
%   [result1,result2] = calculateSumAndAvg(numbers)
%
% Input:
%   numbers = a row vector of numbers
%
% Output:
%   result1 = the sum of the numbers
%   result2 = the average of the numbers
%
    sum = calculateSum(numbers);
    avg = calculateAvg(numbers);
    result1 = sum;
    result2 = avg;
end

function [sum] = calculateSum(numbers)
    % calculateSum: sub-function to calculate the sum of a list of numbers
    sum = 0;
    for i = 1:length(numbers)
        sum = sum + numbers(i);
    end
end

function [avg] = calculateAvg(numbers)
    % calculateAvg: sub-function to calculate the average of a list of numbers
    sum = calculateSum(numbers);
    avg = sum / length(numbers);
end
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