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cgeru.f(3) LAPACK cgeru.f(3)

NAME

cgeru.f

SYNOPSIS

Functions/Subroutines


subroutine cgeru (M, N, ALPHA, X, INCX, Y, INCY, A, LDA)
CGERU

Function/Subroutine Documentation

subroutine cgeru (integer M, integer N, complex ALPHA, complex, dimension(*) X, integer INCX, complex, dimension(*) Y, integer INCY, complex, dimension(lda,*) A, integer LDA)

CGERU

Purpose:


CGERU performs the rank 1 operation
A := alpha*x*y**T + 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


M is INTEGER
On entry, M specifies the number of rows of the matrix A.
M must be at least zero.

N


N is INTEGER
On entry, N specifies the number of columns of the matrix A.
N must be at least zero.

ALPHA


ALPHA is COMPLEX
On entry, ALPHA specifies the scalar alpha.

X


X is COMPLEX array, dimension at least
( 1 + ( m - 1 )*abs( INCX ) ).
Before entry, the incremented array X must contain the m
element vector x.

INCX


INCX is INTEGER
On entry, INCX specifies the increment for the elements of
X. INCX must not be zero.

Y


Y is COMPLEX array, dimension at least
( 1 + ( n - 1 )*abs( INCY ) ).
Before entry, the incremented array Y must contain the n
element vector y.

INCY


INCY is INTEGER
On entry, INCY specifies the increment for the elements of
Y. INCY must not be zero.

A


A is COMPLEX array, 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


LDA is 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 ).

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

December 2016

Further Details:


Level 2 Blas routine.
-- Written on 22-October-1986.
Jack Dongarra, Argonne National Lab.
Jeremy Du Croz, Nag Central Office.
Sven Hammarling, Nag Central Office.
Richard Hanson, Sandia National Labs.

Definition at line 132 of file cgeru.f.

Author

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Tue Nov 14 2017 Version 3.8.0