List of built-in functions?
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Fredrik P
am 5 Apr. 2020
Kommentiert: Walter Roberson
am 21 Jun. 2020
Is there somewhere a list of Matlab’s built-in functions like histc that are not written in Matlab own scripting language? That is, functions whose code that can’t be revealed by open functionName.
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per isakson
am 21 Jun. 2020
Bearbeitet: per isakson
am 21 Jun. 2020
On R2018b, Win10 and a SSD, this code
%%
tic
sad = dir( fullfile( matlabroot, 'toolbox', 'matlab', '**', '*.m' ) );
%%
for d = reshape( sad, 1,[] )
if d.bytes <= 4096
ffs = fullfile( d.folder, d.name );
chr = fileread( ffs );
if contains( chr, 'Built-in function', 'IgnoreCase',true )
fprintf( '%s\n', d.name );
end
end
end
toc
produced a list with 496 names. The elapse time of the second run was less than two and a half seconds.
1 Kommentar
Walter Roberson
am 21 Jun. 2020
There are also additional built-in functions that do not have documenting .m files
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Joost
am 20 Jun. 2020
There is an interesting book on speeding up Matlab functions and scripts. A few years old already, but a good read. Author Yair Altman, also active on Matlab Answers and mastermind behind the Undocumented Matlab page mentioned in one of the comments.
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