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sger (3)
  • >> sger (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         sger - perform the rank 1 operation   A := alpha*x*y' + A
    
    SYNOPSIS
         SUBROUTINE SGER ( M, N, ALPHA, X, INCX, Y, INCY, A, LDA )
    
         REAL ALPHA
    
         INTEGER INCX, INCY, LDA, M, N
    
         REAL A( LDA, * ), X( * ), Y( * )
    
    
    
         #include <sunperf.h>
    
         void sger(int m, int n, float alpha, float  *sx,  int  incx,
                   float *sy, int incy, float *sa, int lda) ;
    
    PURPOSE
         SGER   performs the rank 1 operation A :=  alpha*x*y'  +  A,
         where alpha is a scalar, x is an m element vector, y is an n
         element vector and A is an m by n matrix.
    
    
    PARAMETERS
         M         - INTEGER.
                   On entry, M specifies the number of  rows  of  the
                   matrix  A.  M must be at least zero.  Unchanged on
                   exit.
    
         N         - INTEGER.
                   On entry, N specifies the number of columns of the
                   matrix  A.  N must be at least zero.  Unchanged on
                   exit.
    
         ALPHA     - REAL            .
                   On  entry,  ALPHA  specifies  the  scalar   alpha.
                   Unchanged on exit.
    
         X         - REAL             array of dimension at least
                   ( 1 + ( m - 1 )*abs( INCX ) ).  Before entry,  the
                   incremented  array  X  must  contain the m element
                   vector x.  Unchanged on exit.
    
         INCX      - INTEGER.
                   On entry, INCX specifies  the  increment  for  the
                   elements  of  X. INCX must not be zero.  Unchanged
                   on exit.
    
         Y         - REAL             array of dimension at least
                   ( 1 + ( n - 1 )*abs( INCY ) ).  Before entry,  the
                   incremented  array  Y  must  contain the n element
                   vector y.  Unchanged on exit.
    
         INCY      - INTEGER.
                   On entry, INCY specifies  the  increment  for  the
                   elements  of  Y. INCY must not be zero.  Unchanged
                   on exit.
    
         A         - REAL             array of DIMENSION ( LDA, n ).
                   Before entry, the leading m by n part of the array
                   A  must  contain  the  matrix  of coefficients. On
                   exit, A is overwritten by the updated matrix.
    
         LDA       - INTEGER.
                   On entry, LDA specifies the first dimension  of  A
                   as declared in the calling (sub) program. LDA must
                   be at least max( 1, m ).  Unchanged on exit.
    
    
    
    


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