tangent cone

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• Tangent cone — In geometry, the tangent cone is a generalization of the notion of the tangent space to a manifold to the case of certain spaces with singularities. Definition in convex geometry Let K be a closed convex subset of a real vector space V and part;… …   Wikipedia

• Tangent — For the tangent function see trigonometric functions. For other uses, see tangent (disambiguation). In geometry, the tangent line (or simply the tangent) to a curve at a given point is the straight line that just touches the curve at that point… …   Wikipedia

• Cône tangent — En mathématiques, le cône tangent est l approximation au premier ordre d un ensemble en un point, comme l application dérivée d une fonction est son approximation au premier ordre en un point. Cette notion est, par exemple, utilisée en… …   Wikipédia en Français

• Cône (analyse convexe) — Pour les articles homonymes, voir Cône. En mathématiques, et plus précisément en analyse convexe, un cône est une partie d un espace vectoriel réel qui est stable pour la multiplication par un réel strictement positif. De manière plus précise, K… …   Wikipédia en Français

• Monge cone — In the mathematical theory of partial differential equations (PDE), the Monge cone is a geometrical object associated with a first order equation. It is named for Gaspard Monge. In two dimensions, let be a PDE for an unknown real valued function… …   Wikipedia

• Convex cone — In linear algebra, a convex cone is a subset of a vector space over an ordered field that is closed under linear combinations with positive coefficients. A convex cone (light blue). Inside of it, the light red convex cone consists of all points… …   Wikipedia

• Zariski tangent space — In algebraic geometry, the Zariski tangent space is a construction that defines a tangent space, at a point P on an algebraic variety V (and more generally). It does not use differential calculus, being based directly on abstract algebra, and in… …   Wikipedia

• Nose cone design — Given the problem of the aerodynamic design of the nose cone section of any vehicle or body meant to travel through a compressible fluid medium (such as a rocket or aircraft, missile or bullet), an important problem is the determination of the… …   Wikipedia

• Track forecast cone — [ Hurricane Katrina s five day track forecast, showing the storm s track forecast cone] The track forecast cone is the name employed by the National Hurricane Center for the graphical representation of the uncertainty in its forecasts of a… …   Wikipedia

• Back cone — The back cone of a bevel or hypoid gear is an imaginary cone tangent to the outer ends of the teeth, with its elements perpendicular to those of the pitch cone. The surface of the gear blank at the outer ends of the teeth is customarily formed to …   Wikipedia

• Front cone — The front cone of a hypoid or bevel gear is an imaginary cone tangent to the inner ends of the teeth, with its elements perpendicular to those of the pitch cone. The surface of the gear blank at the inner ends of the teeth is customarily formed… …   Wikipedia