| 释义 |
quinquesect, v.|ˈkwɪnkwɪsɛkt|
Also 7–9 quinqui-.
[f. L. quinque five + sect- ppl. stem of secāre to cut, after bi-, trisect.]
To cut into five (equal) parts. Hence ˈquinquesecting vbl. n.
1697G. K. Disc. Geom. Problems 7 By quinquisection of the Cord of an Angle it [the angle] is quinquisected. 1786Phil. Trans. LXXVI. 16 Mr. Graham..perceived..how very much more easy a given line was to bisect than to trisect or quinquesect. 1809Cavendish ibid. XCIX. 225 Let a α be the arch to be quinquesected. Ibid. 227 In quinquesecting the error of the two middle points is 2.4 times greater than in bisecting. 1853Sir W. R. Hamilton in R. P. Graves Life (1889) III. 453 The Royal Commissioners..have precisely quinquisected the diligence.
So quinqueˈsection, section into five parts.
1684[see quintuplation]. 1697[see above]. 1786Phil. Trans. LXXVI. 16 The division of the arc of 90..required trisections and quinquesections. 1825J. Nicholson Operat. Mechanic 320, I was apprehensive some error might arise from quinquesection and trisection. |