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quadric surface
noun
- a three-dimensional surface whose equation is a quadratic equation.
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51Թ History and Origins
Origin of quadric surface1
First recorded in 1880–85
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Example Sentences
Examples have not been reviewed.
The surface itself is therefore called a quadric surface, or a surface of the second order.
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ELLIPSOID, a quadric surface whose sections are ellipses.
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The diameter of a quadric surface is a line at the extremities of which the tangent planes are parallel.
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The tangent plane to a quadric surface either cuts the surface in two lines, or it has only a single line, or else only a single point in common with the surface.
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The following propositions follow:— A quadric surface has at every point a tangent plane.
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