The OpenNET Project / Index page

[ новости /+++ | форум | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

cupmtr (3)
  • >> cupmtr (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         cupmtr - overwrite the general complex M-by-N matrix C  with
         SIDE = 'L' SIDE = 'R' TRANS = 'N'
    
    SYNOPSIS
         SUBROUTINE CUPMTR( SIDE, UPLO, TRANS, M, N, AP, TAU, C, LDC,
                   WORK, INFO )
    
         CHARACTER SIDE, TRANS, UPLO
    
         INTEGER INFO, LDC, M, N
    
         COMPLEX AP( * ), C( LDC, * ), TAU( * ), WORK( * )
    
    
    
         #include <sunperf.h>
    
         void cupmtr(char side, char uplo, char trans, int m, int  n,
                   complex  *cap, complex *tau, complex *cc, int ldc,
                   int *info) ;
    
    PURPOSE
         CUPMTR overwrites the general complex M-by-N matrix  C  with
         TRANS = 'C':      Q**H * C       C * Q**H
    
         where Q is a complex unitary matrix of order nq, with nq = m
         if  SIDE = 'L' and nq = n if SIDE = 'R'. Q is defined as the
         product of nq-1 elementary reflectors, as returned by CHPTRD
         using packed storage:
    
         if UPLO = 'U', Q = H(nq-1) . . . H(2) H(1);
    
         if UPLO = 'L', Q = H(1) H(2) . . . H(nq-1).
    
    
    ARGUMENTS
         SIDE      (input) CHARACTER*1
                   = 'L': apply Q or Q**H from the Left;
                   = 'R': apply Q or Q**H from the Right.
    
         UPLO      (input) CHARACTER*1
                   = 'U': Upper triangular  packed  storage  used  in
                   previous  call  to CHPTRD; = 'L': Lower triangular
                   packed storage used in previous call to CHPTRD.
    
         TRANS     (input) CHARACTER*1
                   = 'N':  No transpose, apply Q;
                   = 'C':  Conjugate transpose, apply Q**H.
    
         M         (input) INTEGER
                   The number of rows of the matrix C. M >= 0.
    
         N         (input) INTEGER
                   The number of columns of the matrix C. N >= 0.
    
         AP        (input) COMPLEX array, dimension
                   (M*(M+1)/2) if SIDE = 'L' (N*(N+1)/2)  if  SIDE  =
                   'R'   The  vectors  which  define  the  elementary
                   reflectors, as returned by CHPTRD.  AP is modified
                   by the routine but restored on exit.
    
         TAU       (input) COMPLEX array, dimension (M-1) if  SIDE  =
                   'L'
                   or (N-1) if SIDE = 'R'  TAU(i)  must  contain  the
                   scalar factor of the elementary reflector H(i), as
                   returned by CHPTRD.
    
         C         (input/output) COMPLEX array, dimension (LDC,N)
                   On entry, the M-by-N matrix  C.   On  exit,  C  is
                   overwritten by Q*C or Q**H*C or C*Q**H or C*Q.
    
         LDC       (input) INTEGER
                   The leading dimension  of  the  array  C.  LDC  >=
                   max(1,M).
    
         WORK      (workspace) COMPLEX array, dimension
                   (N) if SIDE = 'L' (M) if SIDE = 'R'
    
         INFO      (output) INTEGER
                   = 0:  successful exit
                   < 0:  if INFO = -i, the i-th argument had an ille-
                   gal value
    
    
    
    


    Поиск по тексту MAN-ов: 




    Партнёры:
    PostgresPro
    Inferno Solutions
    Hosting by Hoster.ru
    Хостинг:

    Закладки на сайте
    Проследить за страницей
    Created 1996-2024 by Maxim Chirkov
    Добавить, Поддержать, Вебмастеру