 LAPACK  3.4.2 LAPACK: Linear Algebra PACKage
dlag2s.f File Reference

Go to the source code of this file.

## 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, 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:
 [in] M ``` M is INTEGER The number of lines of the matrix A. M >= 0.``` [in] N ``` N is INTEGER The number of columns of the matrix A. N >= 0.``` [in] A ``` A is DOUBLE PRECISION array, dimension (LDA,N) On entry, the M-by-N coefficient matrix A.``` [in] LDA ``` LDA is INTEGER The leading dimension of the array A. LDA >= max(1,M).``` [out] 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.``` [in] LDSA ``` LDSA is INTEGER The leading dimension of the array SA. LDSA >= max(1,M).``` [out] 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.```
Date:
September 2012

Definition at line 109 of file dlag2s.f.

Here is the call graph for this function:

Here is the caller graph for this function: