quadric

American  

[kwod-rik] / ˈkwɒd rɪk /

adjective

1. of the second degree (said especially of functions with more than two variables).

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noun

1. a quadric function.

2. a surface such as an ellipsoid or paraboloid as defined by a second-degree equation in three real variables.

quadric British  

/ ˈkwɒdrɪk /

adjective

1. having or characterized by an equation of the second degree, usually in two or three variables

2. of the second degree

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noun

1. a quadric curve, surface, or function

Etymology

Origin of quadric

First recorded in 1855–60; quadr- + -ic

Example Sentences

“We were all trying to solve this quadric the same way, and then I realized we just had to invert the way we were looking at it.”

From Literature

A curve of the second order is a conic, and is also called a quadric curve; and conversely every conic is a curve of the second order or quadric curve.

From Project Gutenberg

The first quadric having imaginary generators, no such self-conjugate subgroups can exist for the real group which transforms it into itself; and this real group is in fact simple.

From Project Gutenberg

If a line moves so that it always cuts three given lines of which no two meet, then it generates a ruled quadric surface.

From Project Gutenberg

Consider first a numerical quadric equation with imaginary coefficients.

From Project Gutenberg