LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
Functions/Subroutines
dsytd2.f File Reference

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Functions/Subroutines

subroutine dsytd2 (UPLO, N, A, LDA, D, E, TAU, INFO)
 DSYTD2 reduces a symmetric matrix to real symmetric tridiagonal form by an orthogonal similarity transformation (unblocked algorithm). More...
 
dsymv
subroutine dsymv(UPLO, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY)
DSYMV
Definition: dsymv.f:154
dlarfg
subroutine dlarfg(N, ALPHA, X, INCX, TAU)
DLARFG generates an elementary reflector (Householder matrix).
Definition: dlarfg.f:108
dsyr2
subroutine dsyr2(UPLO, N, ALPHA, X, INCX, Y, INCY, A, LDA)
DSYR2
Definition: dsyr2.f:149
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62
lsame
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:55
ddot
double precision function ddot(N, DX, INCX, DY, INCY)
DDOT
Definition: ddot.f:84
daxpy
subroutine daxpy(N, DA, DX, INCX, DY, INCY)
DAXPY
Definition: daxpy.f:91