C work is a scratch array. Do not compute the left singular C vectors. Do not compute the right singular C vectors. C E ordinarily contains zeros. However, see the C discussion of INFO for exceptions.
C U contains the matrix of right singular vectors.
C U is not referenced if JOBA .EQ. 0. P. C V contains the matrix of right singular vectors. Thus if C INFO .EQ. 0, all the singular values and their C vectors are correct. Thus the singular C values of X and B are the same. C G. W. Stewart, University of Maryland, Argonne National Lab.