diff options
Diffstat (limited to 'SRC/dlarft.f')
-rw-r--r-- | SRC/dlarft.f | 76 |
1 files changed, 51 insertions, 25 deletions
diff --git a/SRC/dlarft.f b/SRC/dlarft.f index 58efb595..c1314670 100644 --- a/SRC/dlarft.f +++ b/SRC/dlarft.f @@ -63,56 +63,82 @@ *> = 'B': H = H(k) . . . H(2) H(1) (Backward) *> \endverbatim *> -* -* Authors -* ======= -* -*> \author Univ. of Tennessee -*> \author Univ. of California Berkeley -*> \author Univ. of Colorado Denver -*> \author NAG Ltd. -* -*> \date November 2011 -* -*> \ingroup doubleOTHERauxiliary -* -* -* Further Details -* =============== -*>\details \b Further \b Details +*> \param[in] STOREV *> \verbatim -* reflectors are stored (see also Further Details): +*> STOREV is CHARACTER*1 +*> Specifies how the vectors which define the elementary +*> reflectors are stored (see also Further Details): *> = 'C': columnwise *> = 'R': rowwise +*> \endverbatim *> -*> N (input) INTEGER +*> \param[in] N +*> \verbatim +*> N is INTEGER *> The order of the block reflector H. N >= 0. +*> \endverbatim *> -*> K (input) INTEGER +*> \param[in] K +*> \verbatim +*> K is INTEGER *> The order of the triangular factor T (= the number of *> elementary reflectors). K >= 1. +*> \endverbatim *> -*> V (input/output) DOUBLE PRECISION array, dimension +*> \param[in,out] V +*> \verbatim +*> V is DOUBLE PRECISION array, dimension *> (LDV,K) if STOREV = 'C' *> (LDV,N) if STOREV = 'R' *> The matrix V. See further details. +*> \endverbatim *> -*> LDV (input) INTEGER +*> \param[in] LDV +*> \verbatim +*> LDV is INTEGER *> The leading dimension of the array V. *> If STOREV = 'C', LDV >= max(1,N); if STOREV = 'R', LDV >= K. +*> \endverbatim *> -*> TAU (input) DOUBLE PRECISION array, dimension (K) +*> \param[in] TAU +*> \verbatim +*> TAU is DOUBLE PRECISION array, dimension (K) *> TAU(i) must contain the scalar factor of the elementary *> reflector H(i). +*> \endverbatim *> -*> T (output) DOUBLE PRECISION array, dimension (LDT,K) +*> \param[out] T +*> \verbatim +*> T is DOUBLE PRECISION array, dimension (LDT,K) *> The k by k triangular factor T of the block reflector. *> If DIRECT = 'F', T is upper triangular; if DIRECT = 'B', T is *> lower triangular. The rest of the array is not used. +*> \endverbatim *> -*> LDT (input) INTEGER +*> \param[in] LDT +*> \verbatim +*> LDT is INTEGER *> The leading dimension of the array T. LDT >= K. +*> \endverbatim *> +* +* Authors +* ======= +* +*> \author Univ. of Tennessee +*> \author Univ. of California Berkeley +*> \author Univ. of Colorado Denver +*> \author NAG Ltd. +* +*> \date November 2011 +* +*> \ingroup doubleOTHERauxiliary +* +* +* Further Details +* =============== +*>\details \b Further \b Details +*> \verbatim *> *> The shape of the matrix V and the storage of the vectors which define *> the H(i) is best illustrated by the following example with n = 5 and |