SLACPY (3lapack)

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

SYNOPSIS

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

      CHARACTER      UPLO

      INTEGER        LDA, LDB, M, N

      REAL           A( LDA, * ), B( LDB, * )

PURPOSE

  SLACPY 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.  = 'U':
          Upper triangular part
          = 'L':      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) 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     (input) INTEGER
          The leading dimension of the array A.  LDA >= max(1,M).

  B       (output) REAL 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).