lacpy - lacpy: copy matrix

Generated automatically by Doxygen for LAPACK from the source code. Version 3.12.0 Sun Jul 20 2025 01:40:05 lacpy(3)

subroutineclacpy(characteruplo,integerm,integern,complex,dimension(lda,*)a,integerlda,complex,dimension(ldb,*)b,integerldb)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. ParametersUPLO 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 Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. subroutinedlacpy(characteruplo,integerm,integern,doubleprecision,dimension(lda,*)a,integerlda,doubleprecision,dimension(ldb,*)b,integerldb)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. ParametersUPLO 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. subroutineslacpy(characteruplo,integerm,integern,real,dimension(lda,*)a,integerlda,real,dimension(ldb,*)b,integerldb)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. ParametersUPLO 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 Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. subroutinezlacpy(characteruplo,integerm,integern,complex*16,dimension(lda,*)a,integerlda,complex*16,dimension(ldb,*)b,integerldb)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. ParametersUPLO 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 Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd.

lacpy - lacpy: copy matrix

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.