SISNAN(1) LAPACK auxiliary routine (version 3.2) SISNAN(1)NAME
SISNAN - returns .TRUE
SYNOPSIS
LOGICAL FUNCTION SISNAN(SIN)
REAL 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) REAL
Input to test for NaN.
LAPACK auxiliary routine (versioNovember 2008 SISNAN(1)