how to make functions in mainscript

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Abdulrehman Khan 2017-7-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/350417-how-to-make-functions-in-mainscript

评论： Walter Roberson 2017-7-30

采纳的回答： Walter Roberson

在 MATLAB Online 中打开

Here is My question and my code. I just want to know how can I make functions in main script

The main script should call:

 a function getData that accepts and returns two positive integer numbers.

 a function adjust that puts the larger in N and smaller in M.

 a function GCD that takes M and N then returns the gcd.

 a function printResult to print the gcd.

   % Asks the user for input and takes only positive numbers into account
  a = input('First number: ');
  b = input('Second number: ');
  a = abs(a);
  b = abs(b); 
n = max(a,b);
m = min(a,b);
 % This is the real trick, normally performed a number of times
r = n - m*floor(n/m); 
% Repeats the operation until updates of a equal updates of b
while r ~= 0
    n = m;
    m = r;
    r = n - m*floor(n/m);
end 
% Displays the result
GCD = m

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Walter Roberson 2017-7-26

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https://ww2.mathworks.cn/matlabcentral/answers/350417-how-to-make-functions-in-mainscript#answer_275682

If you are using R2016b or later, you can just put the code for the function at the end of your script.

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Abdulrehman Khan 2017-7-30

编辑：Abdulrehman Khan 2017-7-30

Thanks for guiding me Sir but there is one more problem. I just need the code to print the answer as GCD = 9 but it prints the min value also. Here the screenshot

Walter Roberson 2017-7-30

在 MATLAB Online 中打开

The code you posted contains

just
function [n,m] = just

so you call just() and it returns two values, but you do not assign the values to variables and you do not have a ";" on the end of the line. The default in MATLAB when you call a function that returns one or more outputs is to display the content of the first output.

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