DISNAN(1) LAPACK auxiliary routine (version 3.2) DISNAN(1)NAME
DISNAN - returns .TRUE
SYNOPSIS
LOGICAL FUNCTION DISNAN(DIN)
DOUBLE PRECISION DIN
PURPOSE
DISNAN returns .TRUE. if its argument is NaN, and .FALSE. otherwise.
To be replaced by the Fortran 2003 intrinsic in the future.
ARGUMENTS
DIN (input) DOUBLE PRECISION
Input to test for NaN.
LAPACK auxiliary routine (versioNovember 2008 DISNAN(1)