table of contents
| lacpy(3) | LAPACK | 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 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 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
!> 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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 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 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
!> 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
subroutine zlacpy (character uplo, integer m, integer n, complex*16, dimension( lda, * ) a, integer lda, complex*16, 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 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 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
!> 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Author¶
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| Tue Jun 30 2026 04:57:07 | Version 3.12.0 |