1 | *> \brief \b SISNAN |
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2 | * |
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3 | * =========== DOCUMENTATION =========== |
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4 | * |
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5 | * Online html documentation available at |
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6 | * http://www.netlib.org/lapack/explore-html/ |
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7 | * |
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8 | *> \htmlonly |
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9 | *> Download SISNAN + dependencies |
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10 | *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/sisnan.f"> |
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11 | *> [TGZ]</a> |
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12 | *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/sisnan.f"> |
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13 | *> [ZIP]</a> |
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14 | *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/sisnan.f"> |
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15 | *> [TXT]</a> |
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16 | *> \endhtmlonly |
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17 | * |
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18 | * Definition: |
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19 | * =========== |
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20 | * |
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21 | * LOGICAL FUNCTION SISNAN( SIN ) |
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22 | * |
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23 | * .. Scalar Arguments .. |
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24 | * REAL SIN |
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25 | * .. |
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26 | * |
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27 | * |
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28 | *> \par Purpose: |
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29 | * ============= |
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30 | *> |
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31 | *> \verbatim |
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32 | *> |
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33 | *> SISNAN returns .TRUE. if its argument is NaN, and .FALSE. |
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34 | *> otherwise. To be replaced by the Fortran 2003 intrinsic in the |
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35 | *> future. |
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36 | *> \endverbatim |
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37 | * |
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38 | * Arguments: |
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39 | * ========== |
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40 | * |
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41 | *> \param[in] SIN |
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42 | *> \verbatim |
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43 | *> SIN is REAL |
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44 | *> Input to test for NaN. |
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45 | *> \endverbatim |
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46 | * |
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47 | * Authors: |
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48 | * ======== |
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49 | * |
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50 | *> \author Univ. of Tennessee |
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51 | *> \author Univ. of California Berkeley |
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52 | *> \author Univ. of Colorado Denver |
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53 | *> \author NAG Ltd. |
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54 | * |
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55 | *> \date November 2011 |
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56 | * |
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57 | *> \ingroup auxOTHERauxiliary |
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58 | * |
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59 | * ===================================================================== |
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60 | LOGICAL FUNCTION SISNAN( SIN ) |
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61 | * |
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62 | * -- LAPACK auxiliary routine (version 3.4.0) -- |
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63 | * -- LAPACK is a software package provided by Univ. of Tennessee, -- |
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64 | * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
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65 | * November 2011 |
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66 | * |
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67 | * .. Scalar Arguments .. |
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68 | REAL SIN |
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69 | * .. |
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70 | * |
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71 | * ===================================================================== |
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72 | * |
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73 | * .. External Functions .. |
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74 | LOGICAL SLAISNAN |
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75 | EXTERNAL SLAISNAN |
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76 | * .. |
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77 | * .. Executable Statements .. |
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78 | SISNAN = SLAISNAN(SIN,SIN) |
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79 | RETURN |
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80 | END |
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