dlacpy (l) - Linux Manuals

dlacpy: copies all or part of a two-dimensional matrix A to another matrix B

NAME

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

SYNOPSIS

SUBROUTINE DLACPY(
UPLO, M, N, A, LDA, B, LDB )

    
CHARACTER UPLO

    
INTEGER LDA, LDB, M, N

    
DOUBLE PRECISION A( LDA, * ), B( LDB, * )

PURPOSE

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

ARGUMENTS

UPLO (input) CHARACTER*1
Specifies the part of the matrix A to be copied to B. = aqUaq: Upper triangular part
= aqLaq: Lower triangular part
Otherwise: All of the matrix A
M (input) INTEGER
The number of rows of the matrix A. M >= 0.
N (input) INTEGER
The number of columns of the matrix A. N >= 0.
A (input) DOUBLE PRECISION array, dimension (LDA,N)
The m by n matrix A. If UPLO = aqUaq, only the upper triangle or trapezoid is accessed; if UPLO = aqLaq, only the lower triangle or trapezoid is accessed.
LDA (input) INTEGER
The leading dimension of the array A. LDA >= max(1,M).
B (output) DOUBLE PRECISION array, dimension (LDB,N)
On exit, B = A in the locations specified by UPLO.
LDB (input) INTEGER
The leading dimension of the array B. LDB >= max(1,M).

Pages related to dlacpy

  • dlacpy (3)
  • dlacn2 (l) - estimates the 1-norm of a square, real matrix A
  • dlacon (l) - estimates the 1-norm of a square, real matrix A
  • dla_gbamv (l) - performs one of the matrix-vector operations y := alpha*abs(A)*abs(x) + beta*abs(y),
  • dla_gbrcond (l) - DLA_GERCOND Estimate the Skeel condition number of op(A) * op2(C) where op2 is determined by CMODE as follows CMODE = 1 op2(C) = C CMODE = 0 op2(C) = I CMODE = -1 op2(C) = inv(C) The Skeel condition number cond(A) = norminf( |inv(A)||A| ) is computed by computing scaling factors R such that diag(R)*A*op2(C) is row equilibrated and computing the standard infinity-norm condition number
  • dla_gbrfsx_extended (l) - computes ..
  • dla_geamv (l) - performs one of the matrix-vector operations y := alpha*abs(A)*abs(x) + beta*abs(y),
  • dla_gercond (l) - DLA_GERCOND estimate the Skeel condition number of op(A) * op2(C) where op2 is determined by CMODE as follows CMODE = 1 op2(C) = C CMODE = 0 op2(C) = I CMODE = -1 op2(C) = inv(C) The Skeel condition number cond(A) = norminf( |inv(A)||A| ) is computed by computing scaling factors R such that diag(R)*A*op2(C) is row equilibrated and computing the standard infinity-norm condition number