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parabola    音标拼音: [pɚ'æbələ]
n. 抛物线

抛物线

parabola
抛物线

parabola
n 1: a plane curve formed by the intersection of a right
circular cone and a plane parallel to an element of the
curve

Parabola \Pa*rab"o*la\, n.; pl. {Parabolas}. [NL., fr. Gr. ?; --
so called because its axis is parallel to the side of the
cone. See {Parable}, and cf. {Parabole}.] (Geom.)
(a) A kind of curve; one of the conic sections formed by the
intersection of the surface of a cone with a plane
parallel to one of its sides. It is a curve, any point of
which is equally distant from a fixed point, called the
focus, and a fixed straight line, called the directrix.
See {Focus}.
(b) One of a group of curves defined by the equation y =
ax^{n} where n is a positive whole number or a positive
fraction. For the {cubical parabola} n = 3; for the
{semicubical parabola} n = 3/2. See under {Cubical}, and
{Semicubical}. The parabolas have infinite branches, but
no rectilineal asymptotes.
[1913 Webster]


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  • Parabola - Wikipedia
    Part of a parabola (blue), with various features (other colours) The complete parabola has no endpoints In this orientation, it extends infinitely to the left, right, and upward The parabola is a member of the family of conic sections
  • Parabola - Formula, Graphing, Examples | Parabola Equation - Cuemath
    A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point and a fixed line Its general equation is of the form y^2 = 4ax (if it opens left right) or of the form x^2 = 4ay (if it opens up down)
  • Parabola - Math is Fun
    A parabola is a curve where any point is at an equal distance from: Get a piece of paper, draw a straight line on it, then make a big dot for the focus (not on the line!) Now play around with some measurements until you have another dot that's exactly the same distance from the focus and the straight line
  • Parabola | Definition, Origin, Equation, Applications | Britannica
    The parabola is an open curve that is a conic section produced by the intersection of a right circular cone and a plane parallel to an element of the cone
  • Parabola - Definition, Equations, Examples, Diagrams
    What is a parabola in mathematics with examples, real-life applications, and diagrams Also, learn its formula in different forms and how to fnd them
  • PARABOLA Definition Meaning - Merriam-Webster
    The meaning of PARABOLA is a plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line : the intersection of a right circular cone with a plane parallel to an element of the cone
  • Bible Gateway passage: Lucas 15:11-32 - Reina-Valera 1960
    Parábola del hijo pródigo -También dijo: Un hombre tenía dos hijos; y el menor de ellos dijo a su padre: Padre, dame la parte de los bienes que me corresponde; y les repartió los bienes No muchos días después, juntándolo todo el hijo menor, se fue lejos a una provincia apartada; y allí desperdició sus bienes viviendo perdidamente Y cuando todo lo hubo malgastado, vino una gran
  • 11. 2 Parabolas - Intermediate Algebra | OpenStax
    Parabola A parabola is all points in a plane that are the same distance from a fixed point and a fixed line The fixed point is called the focus, and the fixed line is called the directrix of the parabola Previously, we learned to graph vertical parabolas from the general form or the standard form using properties Those methods will also work
  • How to Find the Focus of a Parabola: Equations and 5 Examples - wikiHow
    If you've ever cooked food with a parabolic oven in science class or seen the Death Star's laser in Star Wars, you have an idea of what the focal point (or focus) of a parabola is But how do you calculate the focus mathematically? We've





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