lacpy(3)

Library Functions Manual

lacpy(3)

NAME

lacpy - lacpy: copy matrix

SYNOPSIS

Functions

subroutine clacpy (uplo, m, n, a, lda, b, ldb)
CLACPY copies all or part of one two-dimensional array to another. subroutine dlacpy (uplo, m, n, a, lda, b, ldb)
DLACPY copies all or part of one two-dimensional array to another. subroutine slacpy (uplo, m, n, a, lda, b, ldb)
SLACPY copies all or part of one two-dimensional array to another. subroutine zlacpy (uplo, m, n, a, lda, b, ldb)
ZLACPY copies all or part of one two-dimensional array to another.

Detailed Description

Function Documentation

subroutine clacpy (character uplo, integer m, integer n, complex, dimension( lda, * ) a, integer lda, complex, dimension( ldb, * ) b, integer ldb)

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

Purpose:

!>
!> CLACPY 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 is INTEGER
!>          The number of rows of the matrix A.  M >= 0.
!>

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

!>          A is COMPLEX array, dimension (LDA,N)
!>          The m by n matrix A.  If UPLO = 'U', only the upper trapezium
!>          is accessed; if UPLO = 'L', only the lower trapezium is
!>          accessed.
!>

LDA

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

!>          B is COMPLEX 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.

Definition at line 102 of file clacpy.f.

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

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

!>          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 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.

Definition at line 102 of file dlacpy.f.

subroutine slacpy (character uplo, integer m, integer n, real, dimension( lda, * ) a, integer lda, real, dimension( ldb, * ) b, integer ldb)

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

Purpose:

!>
!> SLACPY 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 is INTEGER
!>          The number of rows of the matrix A.  M >= 0.
!>

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

!>          A is REAL 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 is REAL 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.

Definition at line 102 of file slacpy.f.

subroutine zlacpy (character uplo, integer m, integer n, complex16, dimension( lda, ) a, integer lda, complex16, dimension( ldb, ) b, integer ldb)

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

Purpose:

!>
!> ZLACPY 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 is INTEGER
!>          The number of rows of the matrix A.  M >= 0.
!>

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

!>          A is COMPLEX*16 array, dimension (LDA,N)
!>          The m by n matrix A.  If UPLO = 'U', only the upper trapezium
!>          is accessed; if UPLO = 'L', only the lower trapezium is
!>          accessed.
!>

LDA

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

!>          B is COMPLEX*16 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.

Definition at line 102 of file zlacpy.f.

Author

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