disnan(3f)
| 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.
| November 2008 | LAPACK auxiliary routine (version 3.2) |