cgeru(3) [centos man page]

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 (integerM, integerN, complexALPHA, complex, dimension(*)X, integerINCX, complex, dimension(*)Y, integerINCY, complex,
       dimension(lda,*)A, integerLDA)
       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 of 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 of 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 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

		     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:
	   November 2011

       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 131 of file cgeru.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2							  Tue Sep 25 2012							cgeru.f(3)

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CGERU(3)							   BLAS routine 							  CGERU(3)

NAME

       CGERU - perform the rank 1 operation   A := alpha*x*y' + A,

SYNOPSIS

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

	   COMPLEX	ALPHA

	   INTEGER	INCX, INCY, LDA, M, N

	   COMPLEX	A( LDA, * ), X( * ), Y( * )

PURPOSE

       CGERU  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  - COMPLEX 	.
	      On entry, ALPHA specifies the scalar alpha.  Unchanged on exit.

       X      - COMPLEX 	 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      - COMPLEX 	 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      - COMPLEX 	 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							  CGERU(3)

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