首先，built-in 函數是不公開的，其次，built-in 函數並非是用我們熟知的matlab語言寫的，所以，即使給你了，你也未必能看懂。matlab 最初是在兩個高效的底層矩陣計算包 LINPACK 和 EISPACK 上發展出來的，這兩個包的升級版本叫做 LAPACK （關於這些的介紹，你可以參考：http://www.mathworks.com/company
... porates-lapack.html）。能寫出這些包並且對其維護的人都是全球頂尖編程高手，他們不僅要求編程牛逼，還要精通線性代數和矩陣運算。所以，一般人根本不可能接觸到matlab這些底層的東西。曾經有很多matlab愛好者向mathworks 詢問並索要過built-in函數源代碼，都被拒絕了，他們收到的回覆是：
You can read and edit the source code for M-file functions that ship with
MATLAB; the only way to read and edit the built-in functions like FFT is to
get a job with The MathWorks. We don't distribute the built-in source code
for MATLAB.
--
Steve Lord
You can read and edit the source code for M-file functions that ship with
MATLAB; the only way to read and edit the built-in functions like FFT is to
get a job with The MathWorks. We don't distribute the built-in source code
for MATLAB.
--
Steve Lord
