quadric surface

American  

noun

1. a three-dimensional surface whose equation is a quadratic equation.

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Etymology

Origin of quadric surface

First recorded in 1880–85

Example Sentences

When a quadric surface intersects a coordinate plane, the trace is a conic section.

From Textbooks • Mar. 30, 2016

For the following exercises, rewrite the given equation of the quadric surface in standard form.

From Textbooks • Mar. 30, 2016

Show that quadric surface x2 + y2 + z2 − 2xy − 2xz + 2yz − 1 = 0 reduces to two parallel planes passing.

From Textbooks • Mar. 30, 2016

Determine the axis of symmetry of the quadric surface.

From Textbooks • Mar. 30, 2016

The tangents drawn from a point P to a quadric surface form a cone of the second order, for the polar plane of P cuts it in a conic.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various