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noun Geometry.
the set of points in a plane whose distances to two fixed points in the plane have a constant difference; a curve consisting of two distinct and similar branches, formed by the intersection of a plane with a right circular cone when the plane makes a greater angle with the base than does the generator of the cone. Equation: x2/a2 − y2/b2 = ±1.
Origin:
1660–70; < Neo-Latin < Greek hyperbolḗ the geometrical term, literally, excess. See hyperbole
1660–70; < Neo-Latin < Greek hyperbolḗ the geometrical term, literally, excess. See hyperbole
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Hyperbola
is always a great word to know.
So is direct variation. Does it mean:
| relationship between two variables in which one is a constant multiple of the other |
| single number obtained from a matrix that reveals a variety of the matrix's properties |
Collins
World English Dictionary
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
hyperbola
1668, from Gk. hyperbole "extravagance," lit. "a throwing beyond" (see hyperbole). Perhaps so called because the inclination of the plane to the base of the cone exceeds that of the side of the cone.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
hyperbola  (hī-pûr'bə-lə) Pronunciation Key
(click for larger image in new window) Plural hyperbolas or hyperbolae (hī-pûr'bə-lē) A plane curve having two separate parts or branches, formed when two cones that point toward one another are intersected by a plane that is parallel to the axes of the cones. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
hyperbola [(heye-pur-buh-luh)]In geometry, a curve having a single bend, with lines going infinitely far from the bend.
Note: The path of a comet that enters the solar system and then leaves forever is a hyperbolic curve (half of a hyperbola).
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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