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

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Functions/Subroutines

subroutine dgeqpf (M, N, A, LDA, JPVT, TAU, WORK, INFO)
 DGEQPF More...
 
idamax
integer function idamax(N, DX, INCX)
IDAMAX
Definition: idamax.f:73
dgeqr2
subroutine dgeqr2(M, N, A, LDA, TAU, WORK, INFO)
DGEQR2 computes the QR factorization of a general rectangular matrix using an unblocked algorithm.
Definition: dgeqr2.f:132
dlarfg
subroutine dlarfg(N, ALPHA, X, INCX, TAU)
DLARFG generates an elementary reflector (Householder matrix).
Definition: dlarfg.f:108
dnrm2
double precision function dnrm2(N, X, INCX)
DNRM2
Definition: dnrm2.f:76
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62
dlarf
subroutine dlarf(SIDE, M, N, V, INCV, TAU, C, LDC, WORK)
DLARF applies an elementary reflector to a general rectangular matrix.
Definition: dlarf.f:126
dswap
subroutine dswap(N, DX, INCX, DY, INCY)
DSWAP
Definition: dswap.f:84
dlamch
double precision function dlamch(CMACH)
DLAMCH
Definition: dlamch.f:70
dorm2r
subroutine dorm2r(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, INFO)
DORM2R multiplies a general matrix by the orthogonal matrix from a QR factorization determined by sge...
Definition: dorm2r.f:161