1SISNAN(1)           LAPACK auxiliary routine (version 3.1)           SISNAN(1)
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NAME

6       SISNAN - .TRUE
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SYNOPSIS

9       LOGICAL FUNCTION SISNAN(SIN)
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11           REAL         SIN
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PURPOSE

14       SISNAN  returns  .TRUE. if its argument is NaN, and .FALSE.  otherwise.
15       To be replaced by the Fortran 2003 intrinsic in the future.
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ARGUMENTS

19       SIN      (input) REAL
20                Input to test for NaN.
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24 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       SISNAN(1)