 are orthogonal matrices of left and right singular vectors, respectively.</li></ul></div><p>Matlab's built-in function svd seems to use the lapack subroutine xGESVD. Meanwhile, Octave's built-in function svd support both algorithms by using svd_driver().</p><p>If people want to use xGESDD routines in Matlab, it is required to write a MEX-file to call the routine. See <a href="http://www.mathworks.co.kr/matlabcentral/newsreader/view_thread/250196">http://www.mathworks.co.kr/matlabcentral/newsreader/view_thr