unstable point

См. также в других словарях:

• unstable equilibrium — noun : a state of equilibrium of a body (as a pendulum standing direclty upward from its point of support) such that when the body is slightly displaced it departs further from the original position compare stable equilibrium …   Useful english dictionary

• Lagrangian point — The Lagrangian points (IPA en|ləˈgreɪndʒiən, IPA fr|lagʁɑ̃ʒjɑ̃; also Lagrange point, L point, or libration point), are the five positions in an orbital configuration where a small object affected only by gravity can theoretically be stationary… …   Wikipedia

• Periodic point — In mathematics, in the study of iterated functions and dynamical systems, a periodic point of a function is a point which returns to itself after a certain number of function iterations or a certain amount of time. Iterated functions Given an… …   Wikipedia

• Fixed point (mathematics) — Not to be confused with a stationary point where f (x) = 0. A function with three fixed points In mathematics, a fixed point (sometimes shortened to fixpoint, also known as an invariant point) of a function is a point[1] that is …   Wikipedia

• Trigger point — Not to be confused with the Tender points , used for fibromyalgia diagnosis. Trigger points, also known as trigger sites or muscle knots, are described as hyperirritable spots in skeletal muscle that are associated with palpable nodules in taut… …   Wikipedia

• Saddle point — In mathematics, a saddle point is a point in the domain of a function of two variables which is a stationary point but not a local extremum. At such a point, in general, the surface resembles a saddle that curves up in one direction, and curves… …   Wikipedia

• Ballast Point Light — Infobox Lighthouse caption = location = Point Loma, California coordinates = yearbuilt = 1890 yearlit = automated = yeardeactivated = foundation = construction = shape = Square height = convert|34|foot|0 currentlens = lens = Fifth order Fresnel… …   Wikipedia

• Mercy Point — Format Science Fiction Starring Joe Morton Maria del Mar Alexandra Wilson Brian McNamara Julia Pennington Gay Thomas Jordan Lund Country of origin USA No. of episodes …   Wikipedia

• Equilibrium point — In mathematics, the point ilde mathbf{x}in mathbb{R}^n is an equilibrium point for the differential equation :frac{dmathbf{x{dt} = mathbf{f}(t,mathbf{x}) if mathbf{f}(t, ildemathbf{x})=0 for all t,!.Similarly, the point ilde mathbf{x}in… …   Wikipedia

• Terrapin Point — is an observation area located in Niagara Falls, New York at the northwestern corner of Goat Island, next to the Canadian Horseshoe Falls.Terrapin Point is one of two major observation areas to overlook the Falls and lower Niagara Gorge on the… …   Wikipedia

• Smoky Point — is a point of land in the U.S. state of Alaska, located at coord|57|36|48|N|157|41|40|W, where Ugashik Bay joins the much larger Bristol Bay. The most easily distinguishable landmark is the United States Coast Guard lighthouse which is visible to …   Wikipedia