SRC/dlag2s.f(3)

NAME
SRC/dlag2s.f

SYNOPSIS

  Functions/Subroutines
subroutine dlag2s (m, n, a, lda, sa, ldsa, info)
DLAG2S converts a double precision matrix to a single precision matrix.

Function/Subroutine Documentation

  subroutine dlag2s (integer m, integer n, double precision, dimension( lda, * ) a, integer lda, real, dimension( ldsa, * ) sa, integer ldsa, integer info)

DLAG2S converts a double precision matrix to a single precision matrix.

Purpose:

     DLAG2S converts a DOUBLE PRECISION matrix, A, to a SINGLE
     PRECISION matrix, SA.
     RMAX is the overflow for the SINGLE PRECISION arithmetic
     DLAG2S checks that all the entries of A are between -RMAX and
     RMAX. If not the conversion is aborted and a flag is raised.
     This is an auxiliary routine so there is no argument checking.

Parameters
    M

              M is INTEGER
              The number of lines 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)
              On entry, the M-by-N coefficient matrix A.

    LDA

              LDA is INTEGER
              The leading dimension of the array A.  LDA >= max(1,M).

    SA

              SA is REAL array, dimension (LDSA,N)
              On exit, if INFO=0, the M-by-N coefficient matrix SA; if
              INFO>0, the content of SA is unspecified.

    LDSA

              LDSA is INTEGER
              The leading dimension of the array SA.  LDSA >= max(1,M).

    INFO

              INFO is INTEGER
              = 0:  successful exit.
              = 1:  an entry of the matrix A is greater than the SINGLE
                    PRECISION overflow threshold, in this case, the content
                    of SA in exit is unspecified.

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 107 of file dlag2s.f.

Author

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