redhat man page for dger

Query: dger

OS: redhat

Section: l

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

DGER(l) 							   BLAS routine 							   DGER(l)

NAME
DGER - perform the rank 1 operation A := alpha*x*y' + A,
SYNOPSIS
SUBROUTINE DGER ( M, N, ALPHA, X, INCX, Y, INCY, A, LDA ) DOUBLE PRECISION ALPHA INTEGER INCX, INCY, LDA, M, N DOUBLE PRECISION A( LDA, * ), X( * ), Y( * )
PURPOSE
DGER performs the rank 1 operation 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 - DOUBLE PRECISION. On entry, ALPHA specifies the scalar alpha. Unchanged on exit. X - DOUBLE PRECISION 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 - DOUBLE PRECISION 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 - DOUBLE PRECISION 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. Level 2 Blas routine. -- Written on 22-October-1986. Jack Dongarra, Argonne National Lab. Jeremy Du Croz, Nag Central Office. Sven Hammarling, Nag Cen- tral Office. Richard Hanson, Sandia National Labs. BLAS routine 16 October 1992 DGER(l)
Related Man Pages
dsymv(l) - redhat
zgeru(l) - redhat
dgemv(3) - debian
zgerc(3) - debian
zgeru(3) - debian
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