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.