On Tue, 24 May 2016, Markus Demleitner wrote: > Can people live with this? Yes, I'd say it's about as clear an explanation as it's going to get. Thank you. -- Mark Taylor Astronomical Programmer Physics, Bristol University, UK m.b.taylor at bris.ac.uk +44-117-9288776 http://www.star.bris.ac.uk/~mbt/