| 释义 |
quartic, a. and n. Math.|ˈkwɔːtɪk|
[f. L. quart-us fourth + -ic.]
A. adj.
1. Math. Of the fourth degree.
1905R. W. H. T. Hudson (title) Kummer's quartic surface.
2. Applied to a steering wheel shaped like a rectangle with rounded corners.
1973Country Life 17 May 1417/2 A ‘quartic’ steering⁓wheel..is a two-spoke design shaped rather like a television screen. 1974Daily Tel. 17 Sept. 6/5 With two other sporting 1750cc versions also announced today, it becomes the first Allegro to abandon the controversial squared-off ‘quartic’ steering wheel in favour of a conventional round wheel.
B. n. Math. A quantic, curve, or surface of the fourth degree.
1856Cayley Wks. (1889) II. 263 We have for the quartic the following irreducible covariants, viz. the quartic itself U[etc.]. 1885Salmon Mod. Higher Algebra 345 Sylvester proved that every invariant of a quartic is a rational function of S and T. |