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

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Functions/Subroutines

subroutine dlatrd (UPLO, N, NB, A, LDA, E, TAU, W, LDW)
 DLATRD reduces the first nb rows and columns of a symmetric/Hermitian matrix A to real tridiagonal form by an orthogonal similarity transformation. 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
lsame
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:55
dgemv
subroutine dgemv(TRANS, M, N, ALPHA, A, LDA, X, INCX, BETA, Y, INCY)
DGEMV
Definition: dgemv.f:158
ddot
double precision function ddot(N, DX, INCX, DY, INCY)
DDOT
Definition: ddot.f:84
dscal
subroutine dscal(N, DA, DX, INCX)
DSCAL
Definition: dscal.f:81
daxpy
subroutine daxpy(N, DA, DX, INCX, DY, INCY)
DAXPY
Definition: daxpy.f:91