Origin of quadric

from Classical Latin*quadra,*a square (akin to

*quattuor,*four) + -ic

Math. of the second degree: used of a function with more than two variables

Origin of quadric

from Classical Latin a quantic of the second degree

Webster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Link to this page

Cite this page

**MLA Style**

"quadric." YourDictionary, n.d. Web. 11 October 2018. <http://www.yourdictionary.com/quadric>.

**APA Style**

quadric. (n.d.). Retrieved October 11th, 2018, from http://www.yourdictionary.com/quadric

adjective

Of or relating to geometric surfaces that are defined by quadratic equations.

THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Link to this page

Cite this page

**MLA Style**

"quadric." YourDictionary, n.d. Web. 11 October 2018. <http://www.yourdictionary.com/quadric>.

**APA Style**

quadric. (n.d.). Retrieved October 11th, 2018, from http://www.yourdictionary.com/quadric

Noun

(*plural* quadrics)

- (mathematics) A surface whose shape is defined in terms of a quadratic equation

English Wiktionary. Available under CC-BY-SA license.

Link to this page

Cite this page

**MLA Style**

"quadric." YourDictionary, n.d. Web. 11 October 2018. <http://www.yourdictionary.com/quadric>.

**APA Style**

quadric. (n.d.). Retrieved October 11th, 2018, from http://www.yourdictionary.com/quadric

- The diameter of a
**quadric**surface is a line at the extremities of which the tangent planes are parallel. - The physical properties of a heterogeneous body (provided they vary continuously from point to point) are known to depend, in the neighbourhood of any one point of the body, on a
**quadric**function of the co-ordinates with reference to that point. - Same is true of physical quantities such as potential, temperature, &c., throughout small regions in which their variations are continuous; and also, without restriction of dimensions, of moments of inertia, &c. Hence, in addition to its geometrical applications to surfaces of the second order, the theory of
**quadric**functions of position is of fundamental importance in physics. - And therefore varies as the square of the perpendicular drawn from 0 to a tangent plane of a certain
**quadric**surface, the tangent plane in question being parallel to (22). - If the co-ordinate axes coincide with the principal axes of this
**quadric**, we shall have ~(myz) =0, ~(mzx) =0, Z(mxy) = 0~ (24) and if we write ~(mx) = Ma, ~(my1) = Mb, ~(mz) =Mc2, (25) where M=~(m), the quadratic moment becomes M(aiX2+bI,s2+ cv), or Mp, where p is the distance of the origin from that tangent plane of the ellipsoid ~-,+~1+~,=I, (26)

» more...