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Hasil cari dari kata atau frase: cubical parabola (0.01734 detik)
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English → English (gcide)
Definition: cubical parabola
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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