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  4. dlacpy.f(3)

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dlacpy.f(3) LAPACK dlacpy.f(3)

NAME

dlacpy.f

SYNOPSIS

Functions/Subroutines


subroutine dlacpy (UPLO, M, N, A, LDA, B, LDB)
DLACPY copies all or part of one two-dimensional array to another.

Function/Subroutine Documentation

subroutine dlacpy (character UPLO, integer M, integer N, double precision, dimension( lda, * ) A, integer LDA, double precision, dimension( ldb, * ) B, integer LDB)

DLACPY copies all or part of one two-dimensional array to another.

Purpose: 



 DLACPY copies all or part of a two-dimensional matrix A to another


 matrix B.

Parameters:

UPLO 



          UPLO is CHARACTER*1


          Specifies the part of the matrix A to be copied to B.


          = 'U':      Upper triangular part


          = 'L':      Lower triangular part


          Otherwise:  All of the matrix A

M



          M is INTEGER


          The number of rows of the matrix A.  M >= 0.

N



          N is INTEGER


          The number of columns of the matrix A.  N >= 0.

A



          A is DOUBLE PRECISION array, dimension (LDA,N)


          The m by n matrix A.  If UPLO = 'U', only the upper triangle


          or trapezoid is accessed; if UPLO = 'L', only the lower


          triangle or trapezoid is accessed.

LDA



          LDA is INTEGER


          The leading dimension of the array A.  LDA >= max(1,M).

B



          B is DOUBLE PRECISION array, dimension (LDB,N)


          On exit, B = A in the locations specified by UPLO.

LDB



          LDB is INTEGER


          The leading dimension of the array B.  LDB >= max(1,M).

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

December 2016

Definition at line 105 of file dlacpy.f.

Author

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Tue Nov 14 2017 Version 3.8.0