LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
Functions/Subroutines
dlaed9.f File Reference

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Functions/Subroutines

subroutine dlaed9 (K, KSTART, KSTOP, N, D, Q, LDQ, RHO, DLAMDA, W, S, LDS, INFO)
 DLAED9 used by sstedc. Finds the roots of the secular equation and updates the eigenvectors. Used when the original matrix is dense. More...
 
dlaed4
subroutine dlaed4(N, I, D, Z, DELTA, RHO, DLAM, INFO)
DLAED4 used by sstedc. Finds a single root of the secular equation.
Definition: dlaed4.f:147
dcopy
subroutine dcopy(N, DX, INCX, DY, INCY)
DCOPY
Definition: dcopy.f:84
dnrm2
double precision function dnrm2(N, X, INCX)
DNRM2
Definition: dnrm2.f:76
dlamc3
double precision function dlamc3(A, B)
DLAMC3
Definition: dlamch.f:174
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62