LAPACK  3.11.0
LAPACK: Linear Algebra PACKage
Functions
lasd5: D&C step: secular equation, 2x2
LAPACK » Singular Value Decomposition (SVD) » bidiag D&C computational routines

Functions

subroutine dlasd5 (I, D, Z, DELTA, RHO, DSIGMA, WORK)
 DLASD5 computes the square root of the i-th eigenvalue of a positive symmetric rank-one modification of a 2-by-2 diagonal matrix. Used by sbdsdc. More...
 
subroutine slasd5 (I, D, Z, DELTA, RHO, DSIGMA, WORK)
 SLASD5 computes the square root of the i-th eigenvalue of a positive symmetric rank-one modification of a 2-by-2 diagonal matrix. Used by sbdsdc. More...
 

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