Abstract : Geometry, from ancient to modern times

\n\nGeometry has eternally had many serviceable applications. Its main customers were surveyors , pardon , nicks, builders and artists. Surveyor mandatory conventionalitys measuring rod parcels of land , builders , use geometry kreslyly plan buildings , and erected it using some produced for centuries rules downstairs which certain geometrical forms parts of buildings were attached with the conditions of their strength.\nBuilders used as a rule of proportional division. Artisans needed concepts about shapes and forms, volumes of solids . use they world-widely proportional division. The task was entangled artists : they had played on the two-dimensional weather sheet that takes place in three dimensions. To do this they had to develop a kind of geometry - a sort of projective geometry.\nRequirements clear problems fortification and defence mechanism forts led to the universe of discourse in the know quarter of the xviii century. another geometry - descriptive geometry .\nIdeas geometry - one of the foundations on which to XIX century. was in reality created by the ultramodern theory of anatomy of building structures, and general engineering .