And finally with regard to ad hominem attacks Quoting you  You should know that on Wikipedia you wont get anywhere with that sort of attitude and may well be blocked Please respect the fact that this article has existed since  other editors have other ideas too I just reverted some IP editor who apparently not impressed by your arguments or finding your contributions unsuitable deleted the whole bit you added And as I sense might be starting to dawn on you other editors have ideas for the scope of its content that vary from yours If you find some factual errors please feel free to correct them If you see assertions that need support please cite them But please dont presume to come here and delete what has been stable for years and pronounce what you believe to be the proper scope of Solid modeling and how it is no more than a treatise on the mathematical underpinnings