sisnan()

logical function sisnan

(

real, intent(in)

sin

)

SISNAN tests input for NaN.

Download SISNAN + dependencies [TGZ] [ZIP] [TXT]

Purpose:

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

Parameters

[in]

SIN

!> SIN is REAL !> Input to test for NaN. !>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.