单词 | multiple point |
释义 | > as lemmasmultiple point multiple point n. Mathematics a point at which a curve crosses or touches itself at least once. ΚΠ 1836 Philos. Trans. (Royal Soc.) 126 92 If these three equations be simultaneously fulfilled by the same values of θ1 and θn, the points indicated by those values will be multiple points. 1901 A. B. Basset Elem. Treat. Cubic & Quartic Curves Pref. p. vii I have..introduced the words autotomic and anautotomic to designate curves which respectively do and do not possess multiple points. 1959 G. James & R. C. James Math. Dict. (ed. 2) 296/1 Cusps, crunodes, isolated points, and multiple points are singular points. 1996 Philos. Trans. (Royal Soc.) A. 354 1922 The numbers of distinct surfaces and the contact orders of a single surface at multiple points are additive. < as lemmas |
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