plane of symmetry
51Poincaré half-plane model — Stellated regular heptagonal tiling of the model.In non Euclidean geometry, the Poincaré half plane model is the upper half plane, together with a metric, the Poincaré metric, that makes it a model of two dimensional hyperbolic geometry.It is… …
52Floral symmetry — refers to whether, and how, a flower can be divided into two or more identical or mirror image parts. Most flowers are actinomorphic ( star shaped ), meaning they can be divided into symmetrical halves by more than one longitudinal plane passing… …
53Translational symmetry — In geometry, a translation slides an object by a vector a: Ta(p) = p + a.In physics and mathematics, continuous translational symmetry is the invariance of a system of equations under any translation. Discrete translational symmetry is invariance …
54Monochromatic electromagnetic plane wave — In general relativity, the monochromatic electromagnetic plane wave spacetime is the analog of the monochromatic plane waves known from Maxwell s theory. The precise definition of the solution is a bit complicated, but very instructive. Any exact …
55Axis of symmetry — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… …
56Circular symmetry — in mathematical physics applies to a 2 dimensional field which can be expressed as a function of distance from a central point only.[citation needed] This means that all points on each circle take the same value. An example would be magnetic… …
57Projective plane — See real projective plane and complex projective plane, for the cases met as manifolds of respective dimension 2 and 4 In mathematics, a projective plane has two possible definitions, one of them coming from linear algebra, and another (which is… …
58bilateral symmetry — n symmetry in which similar anatomical parts are arranged on opposite sides of a median axis so that one and only one plane can divide the individual into essentially identical halves * * * the configuration of an irregularly shaped body (as the… …
59Sagittal plane — Diagram showing sagittal, coronal and transverse planes. Latin plana sagittalia Sagittal plane is a vertical plane which passes from front to rear dividing the body into right …
60radial symmetry — noun A form of symmetry, arranged equally in all directions from a central point, thus any plane through the central point will divided into mirror image pieces. A circle has radial symmetry, a square does not. See Also: symmetry, bilateral… …
