The OpenNET Project / Index page

[ новости /+++ | форум | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

ssptrs (3)
  • >> ssptrs (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         ssptrs - solve a system of linear equations A*X = B  with  a
         real  symmetric  matrix  A stored in packed format using the
         factorization A = U*D*U**T  or  A  =  L*D*L**T  computed  by
         SSPTRF
    
    SYNOPSIS
         SUBROUTINE SSPTRS( UPLO, N, NRHS, AP, IPIV, B, LDB, INFO )
    
         CHARACTER UPLO
    
         INTEGER INFO, LDB, N, NRHS
    
         INTEGER IPIV( * )
    
         REAL AP( * ), B( LDB, * )
    
    
    
         #include <sunperf.h>
    
         void ssptrs(char uplo, int n,  int  nrhs,  float  *sap,  int
                   *ipivot, float *sb, int ldb, int *info) ;
    
    PURPOSE
         SSPTRS solves a system of linear equations A*X =  B  with  a
         real  symmetric  matrix  A stored in packed format using the
         factorization A = U*D*U**T  or  A  =  L*D*L**T  computed  by
         SSPTRF.
    
    
    ARGUMENTS
         UPLO      (input) CHARACTER*1
                   Specifies whether the details of the factorization
                   are stored as an upper or lower triangular matrix.
                   = 'U':  Upper triangular, form is A = U*D*U**T;
                   = 'L':  Lower triangular, form is A = L*D*L**T.
    
         N         (input) INTEGER
                   The order of the matrix A.  N >= 0.
    
         NRHS      (input) INTEGER
                   The number of right hand sides, i.e.,  the  number
                   of columns of the matrix B.  NRHS >= 0.
    
         AP        (input) REAL array, dimension (N*(N+1)/2)
                   The block diagonal matrix D  and  the  multipliers
                   used  to  obtain  the factor U or L as computed by
                   SSPTRF, stored as a packed triangular matrix.
    
         IPIV      (input) INTEGER array, dimension (N)
                   Details  of  the  interchanges   and   the   block
                   structure of D as determined by SSPTRF.
    
         B         (input/output) REAL array, dimension (LDB,NRHS)
                   On entry, the right hand side matrix B.  On  exit,
                   the solution matrix X.
    
         LDB       (input) INTEGER
                   The leading dimension of  the  array  B.   LDB  >=
                   max(1,N).
    
         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