dlag2s.f man page

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 (integerM, integerN, double precision, dimension( lda, * )A, integerLDA, real, dimension( ldsa, * )SA, integerLDSA, integerINFO)

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

Purpose:

DLAG2S converts a DOUBLE PRECISION matrix, SA, to a SINGLE
PRECISION matrix, A.

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 convertion 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.

Date:

September 2012

Definition at line 109 of file dlag2s.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

dlag2s(3) is an alias of dlag2s.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK