Hello haskell, Industrial programmers often think that functional programming is "unnatural" and cannot be mastered by most of them. But 20 years ago they thought the same about OOP The first widespead OOP system was a Turbo Pascal 5.5, released 1989. i've downloaded its manual, quickly scanned it and found what i've expected: "The challenge of object-oriented programming (OOP) is that it sometimes requires you to set aside habits and ways of thinking about programming that have been considered standard for many years. Once that is done, however, OOP is simple, straight-forward, and superior for solving many of the prob- lems that plague traditional software programs." http://edn.embarcadero.com/article/images/20803/TP_55_OOP_Guide.pdf -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com