plane group

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plane group [′plān ‚grüp]

(crystallography)

The group of operations (rotations, reflections, translations, and combinations of these) which leave a regular, periodic structure in a plane unchanged.

(mathematics)

One of 17 two-dimensional patterns which can be produced by one asymmetric motif that is repeated by symmetry operations to produce a pattern unit which then is repeated by translation to build up an ordered pattern that fills any two-dimensional area. Also known as plane symmetry group.

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No references found			Planck length Planck mass Planck oscillator Planck radiation formula Planck time Planck's Constant Planck's law Planck's Radiation Law Planck, Max Planck, Max Karl Ernst Ludwig Planckian locus Planctomyces Plane Plane Angle plane ashlar plane atmospheric wave plane bed plane correction Plane Curve plane cyclic curve plane defect plane dendrite plane earth plane field Plane Geometry plane group plane jet plane lamina plane lattice Plane Mechanism plane mirror Plane Motion plane of departure plane of fire plane of flotation plane of incidence plane of maximum shear stress plane of mirror symmetry Plane of Polarization plane of reflection plane of saturation Plane of Support plane of symmetry plane of weakness plane of work plane of yaw plane parallel texture plane Poiseuille flow Plane Polarization plane polygon plane quadrilateral			plane ashlar Plane astrolabe Plane astrolabe Plane at infinity plane atmospheric wave plane away plane bed Plane Change Plane chart Plane Closed Curve Plane Control Multiple Access plane correction Plane Crazy Down Under Plane curve Plane curve plane cyclic curve plane defect plane dendrite plane down plane earth Plane Earth Path Loss Plane Fax Report plane field plane figure plane figure plane figure plane geometry plane geometry Plane graph plane group Plane iron plane jet plane joint plane joint plane joint plane joint plane joint plane lamina plane lattice Plane locus Plane Mechanism Plane mirror Plane Motion Plane of Array plane of departure Plane of Disease Plane of Fear Plane of Fire Plane of flotation Plane of flotation Plane of Focus Plane of Hate plane of incidence Plane of Innovation Plane of Justice plane of maximum shear stress plane of mirror symmetry Plane of Nightmare plane of occlusion plane of occlusion

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