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cs440-acg/ext/eigen/lapack/zladiv.f

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+*> \brief \b ZLADIV
+*
+*  =========== DOCUMENTATION ===========
+*
+* Online html documentation available at 
+*            http://www.netlib.org/lapack/explore-html/ 
+*
+*> \htmlonly
+*> Download ZLADIV + dependencies 
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zladiv.f"> 
+*> [TGZ]</a> 
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zladiv.f"> 
+*> [ZIP]</a> 
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zladiv.f"> 
+*> [TXT]</a>
+*> \endhtmlonly 
+*
+*  Definition:
+*  ===========
+*
+*       COMPLEX*16     FUNCTION ZLADIV( X, Y )
+* 
+*       .. Scalar Arguments ..
+*       COMPLEX*16         X, Y
+*       ..
+*  
+*
+*> \par Purpose:
+*  =============
+*>
+*> \verbatim
+*>
+*> ZLADIV := X / Y, where X and Y are complex.  The computation of X / Y
+*> will not overflow on an intermediary step unless the results
+*> overflows.
+*> \endverbatim
+*
+*  Arguments:
+*  ==========
+*
+*> \param[in] X
+*> \verbatim
+*>          X is COMPLEX*16
+*> \endverbatim
+*>
+*> \param[in] Y
+*> \verbatim
+*>          Y is COMPLEX*16
+*>          The complex scalars X and Y.
+*> \endverbatim
+*
+*  Authors:
+*  ========
+*
+*> \author Univ. of Tennessee 
+*> \author Univ. of California Berkeley 
+*> \author Univ. of Colorado Denver 
+*> \author NAG Ltd. 
+*
+*> \date November 2011
+*
+*> \ingroup complex16OTHERauxiliary
+*
+*  =====================================================================
+      COMPLEX*16     FUNCTION ZLADIV( X, Y )
+*
+*  -- LAPACK auxiliary routine (version 3.4.0) --
+*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
+*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
+*     November 2011
+*
+*     .. Scalar Arguments ..
+      COMPLEX*16         X, Y
+*     ..
+*
+*  =====================================================================
+*
+*     .. Local Scalars ..
+      DOUBLE PRECISION   ZI, ZR
+*     ..
+*     .. External Subroutines ..
+      EXTERNAL           DLADIV
+*     ..
+*     .. Intrinsic Functions ..
+      INTRINSIC          DBLE, DCMPLX, DIMAG
+*     ..
+*     .. Executable Statements ..
+*
+      CALL DLADIV( DBLE( X ), DIMAG( X ), DBLE( Y ), DIMAG( Y ), ZR,
+     $             ZI )
+      ZLADIV = DCMPLX( ZR, ZI )
+*
+      RETURN
+*
+*     End of ZLADIV
+*
+      END