- developable surfaces
- мат.• развиваща се повърхнина
English-Bulgarian polytechnical dictionary . 2013.
developable surfaces
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Developable surface — In mathematics, a developable surface is a surface with zero Gaussian curvature. That is, it is a surface that can be flattened onto a plane without distortion (i.e. stretching or compressing ). Conversely, it is a surface which can be made by… … Wikipedia
Differential geometry of surfaces — Carl Friedrich Gauss in 1828 In mathematics, the differential geometry of surfaces deals with smooth surfaces with various additional structures, most often, a Riemannian metric. Surfaces have been extensively studied from various perspectives:… … Wikipedia
Tangential developable — In the mathematical study of the differential geometry of surfaces, a tangential developable is a particular kind of developable surface obtained from a curve in Euclidean space as the surface swept out by the tangent lines to the curve. Such a… … Wikipedia
Ruled surface — A hyperboloid of one sheet is a doubly ruled surface: it can be generated by either of two families of straight lines. In geometry, a surface S is ruled if through every point of S there is a straight line that lies on S. The most familiar… … Wikipedia
Map projection — A medieval depiction of the Ecumene (1482, Johannes Schnitzer, engraver), constructed after the coordinates in Ptolemy s Geography and using his second map projection A map projection is any method of representing the surface of a sphere or other … Wikipedia
Mathematics of paper folding — The art of origami or paper folding has received a considerable amount of mathematical study. Fields of interest include a given paper model s flat foldability (whether the model can be flattened without damaging it) and the use of paper folds to … Wikipedia
Quartic equation — In mathematics, a quartic equation is one which can be expressed as a quartic function equalling zero. The general form of a quartic equation is:ax^4+bx^3+cx^2+dx+e=0 ,where a ne; 0.The quartic is the highest order polynomial equation that can be … Wikipedia
Origami — Paper folding redirects here. For other uses, see Paper folding (disambiguation). For other uses of Origami, see Origami (disambiguation). Origami cranes The foldin … Wikipedia
Architectural geometry — is an area of research which combines applied geometry and architecture, [cite book|author=H. Pottmann, A. Asperl, M. Hofer and A. Kilian|title= [http://www.architecturalgeometry.at Architectural Geometry] |publisher=Bentley Institute… … Wikipedia
Orbifold — This terminology should not be blamed on me. It was obtained by a democratic process in my course of 1976 77. An orbifold is something with many folds; unfortunately, the word “manifold” already has a different definition. I tried “foldamani”,… … Wikipedia
Development (differential geometry) — In classical differential geometry, development refers to the simple idea of rolling one smooth surface over another in Euclidean space. For example, the tangent plane to a surface (such as the sphere or the cylinder) at a point can be rolled… … Wikipedia
