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

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Functions/Subroutines

subroutine zgeqpf (M, N, A, LDA, JPVT, TAU, WORK, RWORK, INFO)
 ZGEQPF More...
 
zunm2r
subroutine zunm2r(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, INFO)
ZUNM2R multiplies a general matrix by the unitary matrix from a QR factorization determined by cgeqrf...
Definition: zunm2r.f:161
idamax
integer function idamax(N, DX, INCX)
IDAMAX
Definition: idamax.f:73
zlarf
subroutine zlarf(SIDE, M, N, V, INCV, TAU, C, LDC, WORK)
ZLARF applies an elementary reflector to a general rectangular matrix.
Definition: zlarf.f:130
dznrm2
double precision function dznrm2(N, X, INCX)
DZNRM2
Definition: dznrm2.f:77
zgeqr2
subroutine zgeqr2(M, N, A, LDA, TAU, WORK, INFO)
ZGEQR2 computes the QR factorization of a general rectangular matrix using an unblocked algorithm.
Definition: zgeqr2.f:132
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62
zswap
subroutine zswap(N, ZX, INCX, ZY, INCY)
ZSWAP
Definition: zswap.f:83
zlarfg
subroutine zlarfg(N, ALPHA, X, INCX, TAU)
ZLARFG generates an elementary reflector (Householder matrix).
Definition: zlarfg.f:108
dlamch
double precision function dlamch(CMACH)
DLAMCH
Definition: dlamch.f:70