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wikipedia.org
https://en.wikipedia.org/wiki/Quadric
Quadric - Wikipedia
In mathematics, a quadric or quadric surface is a generalization of conic sections (ellipses, parabolas, and hyperbolas). In three-dimensional space, quadrics include ellipsoids, paraboloids, and hyperboloids.
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libretexts.org
https://math.libretexts.org/Bookshelves/Calculus/C…
12.6: Quadric Surfaces - Mathematics LibreTexts
Quadric surfaces are three-dimensional surfaces with traces composed of conic sections. Every quadric surface can be expressed with an equation of the form A x 2 + B y 2 + C z 2 + D x y + E x z + F y z + G x + H y + J z + K = 0. To sketch the graph of a quadric surface, start by sketching the traces to understand the framework of the surface.
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geeksforgeeks.org
https://www.geeksforgeeks.org/maths/quadric-surfac…
Quadric Surfaces - GeeksforGeeks
Quadric surfaces are three-dimensional shapes like ellipsoids, hyperboloids, or paraboloids, described by second-degree equations in three variables. These surfaces have have wide-ranging applications in fields such as physics, engineering, and computer graphics.
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merriam-webster.com
https://www.merriam-webster.com/dictionary/quadric
QUADRIC Definition & Meaning - Merriam-Webster
The meaning of QUADRIC is quadratic —used where there are more than two variables. How to use quadric in a sentence.
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northwestern.edu
https://sites.math.northwestern.edu/~aaron/quadric…
Interactive Gallery of Quadric Surfaces
In this gallery you’ll find interactive pictures of the quadric surfaces. You can see what the cross sections look like, and also see how various coefficients can affect how they look.
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wolfram.com
https://mathworld.wolfram.com/Quadric.html
Quadric -- from Wolfram MathWorld
A quadric is a quadratic surface. A surface of the form (x^2)/ (a^2+theta)+ (y^2)/ (b^2+theta)+ (z^2)/ (c^2+theta)=1 is also called a quadric, and theta is said to be the parameter of the quadric.
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storyofmathematics.com
https://www.storyofmathematics.com/quadric-surface…
Quadric surfaces - Definition, Types, and Examples
Quadric surfaces are graphs formed from second-degree equations containing three variables and positioned in the three-dimensional coordinate system. They are the 3D counterparts of conic sections and have six distinct types.
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cambridge.org
https://dictionary.cambridge.org/us/dictionary/eng…
QUADRIC | definition in the Cambridge English Dictionary
A frequently used class of objects are the quadric surfaces, which are described with second-degree equations (quadratics).
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encyclopediaofmath.org
https://encyclopediaofmath.org/wiki/Quadric
Quadric - Encyclopedia of Mathematics
The points of a quadric and only these are self-conjugate. A line all points of which lie on a quadric is called a generator of the quadric. By the pole of a given plane with respect to a quadric is meant the point that is conjugate to every point of this plane.
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uky.edu
https://clp.math.uky.edu/clp3/sec_quadrics.html
Quadric Surfaces - University of Kentucky
Another named class of relatively simple, but commonly occurring, surfaces is the quadric surfaces.