Someone asked about the short ADEV tutorial I wrote a few years ago. The text and graphs are at: www.leapsecond.com/pages/adev/ /tvb (iPhone4) On Jun 26, 2012, at 14:32, "Tom Van Baak (lab)" <tvb at leapsecond.com> wrote: > With four points one can compute ADEV... > > <photo.JPG> >