conic sections

conic sections
วิชาเรขาคณิตที่กล่าวด้วยรูปร่างต่างๆ ที่ได้มา โดยตัดรูปทรงกรวย กล่าวคือ ตัดกรวยโดยมุมที่ฐานน้อยกว่ามุมของด้านข้างได้แก่ ellipse คือรูปไข่ ตัดโดยมุมที่ฐานเท่ากับมุมด้านข้างได้แก่ parabola คือรูปเส้นโค้งด้านขนาน ตัดโดยมุมที่ฐานใหญ่กว่าได้แก่ hyperbola คือรูปเส้นโค้งอ้า

English - Thai dictionary . 2013.

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  • Conic sections — Conic Con ic, Conical Con ic*al, a. [Gr. ?: cf. F. conique. See {Cone}.] 1. Having the form of, or resembling, a geometrical cone; round and tapering to a point, or gradually lessening in circumference; as, a conic or conical figure; a conical… …   The Collaborative International Dictionary of English

  • Conic sections — Section Sec tion, n. [L. sectio, fr. secare, sectum, to cut; akin to E. saw a cutting instrument: cf. F. section. See {Saw}, and cf. {Scion}, {Dissect}, {Insect}, {Secant}, {Segment}.] 1. The act of cutting, or separation by cutting; as, the… …   The Collaborative International Dictionary of English

  • Conic Sections — Mathematics Math e*mat ics, n. [F. math[ e]matiques, pl., L. mathematica, sing., Gr. ? (sc. ?) science. See {Mathematic}, and { ics}.] That science, or class of sciences, which treats of the exact relations existing between quantities or… …   The Collaborative International Dictionary of English

  • Conic Sections Rebellion — The Conic Sections Rebellion, also known as the Conic Section Rebellion, refers primarily to an incident which occurred at Yale University in 1830,[1] as a result of changes in the methods of mathematics education.[2] When a policy change… …   Wikipedia

  • Matrix representation of conic sections — In mathematics, the matrix representation of conic sections is one way of studying a conic section, its axis, vertices, foci, tangents, and the relative position of a given point. We can also study conic sections whose axes aren t parallel to our …   Wikipedia

  • Conic — Con ic, Conical Con ic*al, a. [Gr. ?: cf. F. conique. See {Cone}.] 1. Having the form of, or resembling, a geometrical cone; round and tapering to a point, or gradually lessening in circumference; as, a conic or conical figure; a conical vessel.… …   The Collaborative International Dictionary of English

  • Conic section — Conic Con ic, Conical Con ic*al, a. [Gr. ?: cf. F. conique. See {Cone}.] 1. Having the form of, or resembling, a geometrical cone; round and tapering to a point, or gradually lessening in circumference; as, a conic or conical figure; a conical… …   The Collaborative International Dictionary of English

  • Conic section — Types of conic sections: 1. Parabola 2. Circle and ellipse 3. Hyperbola …   Wikipedia

  • conic section — Geom. a curve formed by the intersection of a plane with a right circular cone; an ellipse, a circle, a parabola, or a hyperbola. Also called conic. [1655 65] * * * Any two dimensional curve traced by the intersection of a right circular cone… …   Universalium

  • Conic constant — An illustration of various conic constants In geometry, the conic constant (or Schwarzschild constant[1], after Karl Schwarzschild) is a quantity describing …   Wikipedia

  • conic — adj. & n. adj. of a cone. n. 1 a conic section. 2 (in pl.) the study of conic sections. Phrases and idioms: conic section a figure formed by the intersection of a cone and a plane. Etymology: mod.L conicus f. Gk konikos (as cone) …   Useful english dictionary

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