LAPACK  3.4.1
LAPACK: Linear Algebra PACKage
sisnan.f
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00001 *> \brief \b SISNAN
00002 *
00003 *  =========== DOCUMENTATION ===========
00004 *
00005 * Online html documentation available at 
00006 *            http://www.netlib.org/lapack/explore-html/ 
00007 *
00008 *> \htmlonly
00009 *> Download SISNAN + dependencies 
00010 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/sisnan.f"> 
00011 *> [TGZ]</a> 
00012 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/sisnan.f"> 
00013 *> [ZIP]</a> 
00014 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/sisnan.f"> 
00015 *> [TXT]</a>
00016 *> \endhtmlonly 
00017 *
00018 *  Definition:
00019 *  ===========
00020 *
00021 *       LOGICAL FUNCTION SISNAN( SIN )
00022 * 
00023 *       .. Scalar Arguments ..
00024 *       REAL               SIN
00025 *       ..
00026 *  
00027 *
00028 *> \par Purpose:
00029 *  =============
00030 *>
00031 *> \verbatim
00032 *>
00033 *> SISNAN returns .TRUE. if its argument is NaN, and .FALSE.
00034 *> otherwise.  To be replaced by the Fortran 2003 intrinsic in the
00035 *> future.
00036 *> \endverbatim
00037 *
00038 *  Arguments:
00039 *  ==========
00040 *
00041 *> \param[in] SIN
00042 *> \verbatim
00043 *>          SIN is REAL
00044 *>          Input to test for NaN.
00045 *> \endverbatim
00046 *
00047 *  Authors:
00048 *  ========
00049 *
00050 *> \author Univ. of Tennessee 
00051 *> \author Univ. of California Berkeley 
00052 *> \author Univ. of Colorado Denver 
00053 *> \author NAG Ltd. 
00054 *
00055 *> \date November 2011
00056 *
00057 *> \ingroup auxOTHERauxiliary
00058 *
00059 *  =====================================================================
00060       LOGICAL FUNCTION SISNAN( SIN )
00061 *
00062 *  -- LAPACK auxiliary routine (version 3.4.0) --
00063 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
00064 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
00065 *     November 2011
00066 *
00067 *     .. Scalar Arguments ..
00068       REAL               SIN
00069 *     ..
00070 *
00071 *  =====================================================================
00072 *
00073 *  .. External Functions ..
00074       LOGICAL SLAISNAN
00075       EXTERNAL SLAISNAN
00076 *  ..
00077 *  .. Executable Statements ..
00078       SISNAN = SLAISNAN(SIN,SIN)
00079       RETURN
00080       END
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