cone: Definition from Answers.com
If the elements of a cone make equal angles with a line through the vertex, the cone is called a cone of revolution. Plane sections of a cone of revolution are ...
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List of gear nomenclature - Information from Answers.com
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.
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Descriptive geometry - Information from Answers.com
The general solution is represented by a single, three-dimensional object, usually a cone, the directions of the elements of which are the desired direction of ...
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Tube domain - Information from Answers.com
The Hardy spaces on tubes over convex cones have an especially rich ... If A is a cone, then the elements of H2(TA) have L2 boundary limits in the sense that ...
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Ordered field - Information from Answers.com
Artin and Schreier gave Def 2 in 1926, which axiomatizes the subcollection of nonnegative elements. It subcollection is termed a positive cones (Def 2 below) in ...
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Spherical coordinate system - Information from Answers.com
The surface element in a surface of polar angle θ constant (a cone with vertex the origin) is. \mathrm{d}S_\theta=r\,\sin\theta. The surface element in a surface of ...
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parabola: Definition from Answers.com
A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone or by the locus of points equidistant from a fixed ...
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Positive element - Information from Answers.com
such that A = B * B. A positive element is self-adjoint and thus normal. If T is a bounded ... The set of positive elements of a C*-algebra forms a convex cone.
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Convex cone - Information from Answers.com
In linear algebra, a convex cone is a subset of a vector space over an ... set of all vectors λx such that λ is a positive scalar and x is an element of some convex ...
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