how to get randn function

i want randn function(open randn)

but can not get that

only see footnote(%)

how to get function?

Answer 1

[Walter Roberson]

See response #4 of https://www.mathworks.com/matlabcentral/newsreader/view_thread/169460

To that I would add another possibility: you can get a job at Mathworks (perhaps as an intern) and then you would have access to the source.

Answer 2

[KSSV]

Some built-in functions are not .m scripts but are of some other format which cannot be edited. Evidently randn is one of those.