Various derived fields (calculated according to rules of editorial computing) are presented on FILE MEDIT pages in the form Population density: ####.# inhabitants/km^2 / density=Popul/Area giving in data FINLAND for Helsinki: Population density: 2731.1 inhabitants/km^2 / density=Popul/Area Values of variables and expressions can be presented also as data-dependent comments, for example: Population density in %1 is %2. / %1=Commune %2=round(Popul/Area,1) giving in data FINLAND for Helsinki: Population density in Helsinki is 2731.1. M = More information on FILE MEDIT