On Thu, 25 Jan 2007 14:38:04 +0100 Florian Klaempfl <florian at freepascal.org> wrote: > Mattias Gaertner schrieb: > > How to set a double to NAN (not a number)? > > I only found a IsNAN in the math unit. > > Then you should search more ;) Acutally there is NaN You are right. Sorry, probably a typo in the search. FPC is great. Mattias