what are they different file?

hi there are two m.files,but what are they different ? ths u

Answer 1

[Stephen23]

Some beginners think that they are the same, but they are not: the top one is a script, the bottom one is a function:

https://www.mathworks.com/help/matlab/matlab_prog/scripts-and-functions.html

https://www.mathworks.com/help/matlab/matlab_prog/create-functions-in-files.html

https://www.mathworks.com/help/matlab/matlab_prog/create-scripts.html

And in general, scripts are great for playing around, but are useless for doing any real work (i.e. any code that you actually want to be reliable and get results from):

https://www.mathworks.com/matlabcentral/answers/228557-experts-of-matlab-how-did-you-learn-any-advice-for-beginner-intermediate-users