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conic    音标拼音: [k'ɑnɪk] [k'onɪk]
a. 圆锥的,圆锥形的

圆锥的,圆锥形的

conic
adj 1: relating to or resembling a cone; "conical mountains";
"conelike fruit" [synonym: {conic}, {conical}, {conelike},
{cone-shaped}]
n 1: (geometry) a curve generated by the intersection of a plane
and a circular cone [synonym: {conic section}, {conic}]

Conic \Con"ic\, n. (Math.)
A conic section.
[1913 Webster]


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.
[1913 Webster]

2. Of or pertaining to a cone; as, conic sections.
[1913 Webster]

{Conic section} (Geom.), a curved line formed by the
intersection of the surface of a right cone and a plane.
The conic sections are the parabola, ellipse, and
hyperbola. The right lines and the circle which result
from certain positions of the plane are sometimes, though
not generally included.

{Conic sections}, that branch of geometry which treats of the
parabola, ellipse, and hyperbola.

{Conical pendulum}. See {Pendulum}.

{Conical projection}, a method of delineating the surface of
a sphere upon a plane surface as if projected upon the
surface of a cone; -- much used by makers of maps in
Europe.

{Conical surface} (Geom.), a surface described by a right
line moving along any curve and always passing through a
fixed point that is not in the plane of that curve.
[1913 Webster]


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  • Conic section - Wikipedia
    A conic section, conic or a quadratic curve is a curve obtained from a cone's surface intersecting a plane The three types of conic section are the hyperbola, the parabola, and the ellipse; the circle is a special case of the ellipse, though it was sometimes considered a fourth type
  • Conic面型 - 知乎 - 知乎专栏
    Conic面型 是常用的透镜曲面表达式,其公式如下: z = c r 2 1 + 1 (1 + k) c 2 r 2 , 这里 r 2 = x 2 + y 2 对于双曲面来说,假定a、b分别为沿x轴和y轴的半轴长, 有 1 c = R = ± b 2 a ,其中c是曲率; 有 k = [a 2 b 2 a 2] ,其中k常称为 conic常量。 因此不同的k, 对应不同的曲面类型,如下图所示:
  • 圆锥曲线_百度百科
    本词条由 “科普中国”科学百科词条编写与应用工作项目 审核 。 圆锥曲线(Conic Sections)是数学几何学中一类形式优美且应用极广的平面曲线,由平面截取二次锥面而得名。 其基本形态包括 椭圆 、 抛物线 和 双曲线。
  • Lecture 12 Appendix: Conic Sections (圆
    In Cartesian coordinates(直角坐标系)the general quadratic equation of a conic is Ax2 + Bxy + Cy2 + Dx + Ey + F = 0, where A, B, C, D, E, F are constants The discriminant ∆ = B2 4AC deter-mines the
  • Conic Sections - Math is Fun
    Conic Section a section (or slice) through a cone So all those curves are related
  • 11. 5: Conic Sections - Mathematics LibreTexts
    Conic sections get their name because they can be generated by intersecting a plane with a cone A cone has two identically shaped parts called nappes Conic sections are generated by the …
  • 圆锥曲线 conic section の 推导 proof - Corylus - 博客园
    圆锥曲线 conic section の 推导 proof 这是不同圆锥曲线的基本性质和推导,包含椭圆、双曲线、和抛物线。 圆锥曲线虽然记起来有点奇怪,但自己推一遍就比较好记了。 不算太复杂,而且化简起来很奇妙。 毕竟,它们本身长得就很特殊。 椭圆 eclipse
  • Conic section | Ellipses, Parabolas Hyperbolas | Britannica
    Conic section, in geometry, any curve produced by the intersection of a plane and a right circular cone Depending on the angle of the plane relative to the cone, the intersection is a circle, an ellipse, a hyperbola, or a parabola
  • Conic Section -- from Wolfram MathWorld
    The conic sections are the nondegenerate curves generated by the intersections of a plane with one or two nappes of a cone For a plane perpendicular to the axis of the cone, a circle is produced
  • Conic Programming 锥规划问题 - CSDN博客
    Conic Programming (1) 先给出锥和凸锥的定义: (2) 锥的分类 凸锥的图形化表示: Remark: 锥与球的区别 (3) 锥规划问题及其对偶问题的形式:





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