elliptical equation

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• Elliptical wing — An elliptical wing is a wing planform shape, first seen on aircraft in the 1930s, which minimizes induced drag. Elliptical taper shortens the chord near the wingtips in such a way that all parts of the wing experience equivalent downwash, and… …   Wikipedia

• Equation of the center — The equation of the center, in astronomy and elliptical motion, is equal to the true anomaly minus the mean anomaly, i.e. the difference between the actual angular position in the elliptical orbit and the position the orbiting body would have if… …   Wikipedia

• Elliptical polarization — In electrodynamics, elliptical polarization is the polarization of electromagnetic radiation such that the tip of the electric field vector describes an ellipse in any fixed plane intersecting, and normal to, the direction of propagation. An… …   Wikipedia

• Sinusoidal plane-wave solutions of the electromagnetic wave equation — Sinusoidal plane wave solutions are particular solutions to the electromagnetic wave equation.The general solution of the electromagnetic wave equation in homogeneous, linear, time independent media can be written as a linear superposition of… …   Wikipedia

• Orbit equation — In astrodynamics an orbit equation defines the path of orbiting body around central body relative to , without specifying position as a function of time. Under standard assumptions, a body moving under the influence of a force, directed to a… …   Wikipedia

• Helmholtz equation — The Helmholtz equation, named for Hermann von Helmholtz, is the elliptic partial differential equation:( abla^2 + k^2) A = 0where abla^2 is the Laplacian, k is a constant, and the unknown function A=A(x, y, z) is defined on n dimensional… …   Wikipedia

• Lotka–Volterra equation — The Lotka–Volterra equations, also known as the predator prey equations , are a pair of first order, non linear, differential equations frequently used to describe the dynamics of biological systems in which two species interact, one a predator… …   Wikipedia

• Fundamental plane (elliptical galaxies) — The fundamental plane for elliptical galaxies relates the effective radius, average surface brightness and central velocity dispersion.MotivationMany characteristics of a galaxy are correlated. For example, as one would expect, a galaxy with a… …   Wikipedia

• Kepler's equation — noun the mathematical relationship between the mean anomaly (M) and the eccentric anomaly (E) of a planet in an elliptical orbit with eccentricity (). See Also: Keplers laws …   Wiktionary

• Ellipse — Elliptical redirects here. For the exercise machine, see Elliptical trainer. This article is about the geometric figure. For other uses, see Ellipse (disambiguation). Not to be confused with ellipsis. An ellipse obtained as the intersection of a… …   Wikipedia

• Orbital mechanics — A satellite orbiting the earth has a tangential velocity and an inward acceleration. Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other… …   Wikipedia