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Accessing code for built-in functions

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Fikret Taygun Duvan
Fikret Taygun Duvan on 20 Jan 2022
Commented: Steven Lord on 20 Jan 2022
Hi,
I cannot use the open or edit commands to see the source code for built-in functions. When I do it I can only see the comments that are included for that function but not the actual code.
I'm trying this on functions like plot.m and fft.m
I hope somenone can give me advice.
Best,
Taygun
  1 Comment
Steven Lord
Steven Lord on 20 Jan 2022
What were you hoping to do with the source code for those built-in functions? If you were hoping to convert them to another language (specifically C or C++) some of them are supported by MATLAB Coder. fft is supported by MATLAB Coder, plot is not.

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Answers (1)

Max Heimann
Max Heimann on 20 Jan 2022
Edited: Max Heimann on 20 Jan 2022
These functions are not accessible to users as they are MATLABs proprietary code. They are p-coded, which its matlabs way to obscure code. You can only see the header of p-coded files.
You may still place breakpoints and see what they do with the workspace, but you will not be able to see the source code.
  2 Comments
Walter Roberson
Walter Roberson on 20 Jan 2022
more correctly, a lot of them are built-in functions coded in C or C++ with occasional Fortran as well.

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