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单词 cyclotomy
释义

cyclotomyn.

Etymology: < Greek κύκλος circle + -τομια cutting. In sense 1 rendering German kreistheilung.Previous versions of the OED give the stress as: cyˈclotomy.
1. Mathematics. The problem of the division of a circle into a given number of equal parts (Sylvester).
ΘΚΠ
the world > relative properties > number > geometry > curve > [noun] > problem or process relating to
Simpson1847
reciprocation1852
cyclotomy1879
Plateau1911
versine1943
1879 J. J. Sylvester in Amer. Jrnl. Math. 2 380 Bachmann's work, as it seems to me, gives proof, that Cyclotomy is to be regarded not as an incidental application, but as the natural and inherent centre and core of the arithmetic of the future.
1892 G. B. Mathews Theory of Numbers i. 184.
2. Ophthalmology. (See quot. 1889.)
ΚΠ
1889 G. A. Berry Dis. Eye vii. 222 Division of the ciliary muscle, or cyclotomy.

Derivatives

cycloˈtomic adj. as in cyclotomic functions.
ΘΚΠ
the world > relative properties > number > mathematics > [adjective] > relating to mathematical enquiry > of a proposition > of a problem
problematical1570
unlimited1702
poristic1704
porismatic1792
cyclotomic1879
complex1965
1879 J. J. Sylvester in Amer. Jrnl. Math. 2 357 The species of cyclotomic..functions of which the cubic function above written is an example.
This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2019).
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n.1879
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