What is the algorithm for LU factorization in MATLAB, i.e. [L,U] = lu(a)
?
After searching for many examples and trying to compare the result with MATLAB, they are all different.
However, I would like to do the result as it is in MATLAB. Which books contain the algorithm; or, what is exact algorithm used?
a = [1,2,3;4,5,6;7,8,9] [L,U] = lu(a)
I Googled this, and it is different from MATLAB:
http://web.mit.edu/18.06/www/Course-Info/Tcodes.html
http://www.stat.nctu.edu.tw/~misg/SUmmer_Course/C_language/Ch06/LUdecomposition.htm