SISNAN(3)      LAPACK routine of NEC Numeric Library Collection      SISNAN(3)



NAME
       SISNAN

SYNOPSIS
       LOGICAL FUNCTION SISNAN (SIN)



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




ARGUMENTS
           SIN       (input)
                     SIN is REAL
                     Input to test for NaN.



LAPACK routine                  31 October 2017                      SISNAN(3)