SLACPY  -  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).


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