planar geometry

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• Planar straight-line graph — (PSLG) is a term used in computational geometry for an embedding of a planar graph in the plane such that its edges are mapped into straight line segments. [cite book author = Franco P. Preparata and Michael Ian Shamos | title = Computational… …   Wikipedia

• Planar Hall sensor — The planar Hall sensor [http://www.mic.dtu.dk/upload/institutter/mic/forskning/magnetic systems/reports/phd louiseejsing.pdf] is based on the planar Hall effect of ferromagnetic materials. [http://scitation.aip.org/getpdf/servlet/GetPDFServlet?fil… …   Wikipedia

• Square planar molecular geometry — The square planar molecular geometry in chemistry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds. As the name suggests, molecules of this geometry have their atoms positioned at the… …   Wikipedia

• Trigonal planar molecular geometry — In chemistry, trigonal planar is a molecular geometry with one atom at the center and three atoms at the corners of a triangle all in one planeFact|date=January 2008. In an ideal trigonal planar species, all three ligands are identical and all… …   Wikipedia

• Lie sphere geometry — is a geometrical theory of planar or spatial geometry in which the fundamental concept is the circle or sphere. It was introduced by Sophus Lie in the nineteenth century. [The definitive modern textbook on Lie sphere geometry is Harvnb|Cecil|1992 …   Wikipedia

• Trigonal pyramidal molecular geometry — Infobox molecular geometry Symmetry group= C3v Electron direction=4 Atom direction=3 Bond angle …   Wikipedia

• Square pyramidal molecular geometry — In molecular geometry, square based pyramidal geometry describes the shape of certain compounds with the formula ML5 where L is a ligand. If the ligand atoms were connected, the resulting shape would be that of a pyramid with a square base. The… …   Wikipedia

• T-shaped molecular geometry — In chemistry, T shaped molecular geometry describes a somewhat unusual geometry adopted by compounds where a central atom has three ligands. Ordinarily, three coordinated compounds minimize the steric repulsion between the ligands by adopting… …   Wikipedia

• Molecular geometry — Geometry of the water molecule Molecular geometry or molecular structure is the three dimensional arrangement of the atoms that constitute a molecule. It determines several properties of a substance including its reactivity, polarity, phase of… …   Wikipedia

• Non-Euclidean geometry — Behavior of lines with a common perpendicular in each of the three types of geometry Non Euclidean geometry is the term used to refer to two specific geometries which are, loosely speaking, obtained by negating the Euclidean parallel postulate,… …   Wikipedia

• K-set (geometry) — In discrete geometry, a k set of a finite point set S in the Euclidean plane is a subset of k elements of S that can be strictly separated from the remaining points by a line. More generally, in Euclidean space of higher dimensions, a k set of a… …   Wikipedia