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单词 non-negative
释义

non-negativeadj.

Brit. /nɒnˈnɛɡətɪv/, U.S. /nɑ(n)ˈnɛɡədɪv/
Origin: Formed within English, by derivation. Etymons: non- prefix, negative adj.
Etymology: < non- prefix + negative adj.
Not negative; spec. (of a number) either positive or equal to zero; (of a function, variable, etc.) taking values which are always either positive or equal to zero.
ΚΠ
1753 S. Richardson Hist. Sir Charles Grandison IV. iv. 33 Have you not, madam, given a Lady's consent. That we men expect not to be very explicit, very gracious.—It is from such non-negative consents, that we men make silence answer all we wish.
1885 J. Veitch Inst. Logic xxxiv. 464 The theory of the Inductive Principle is at once' positive and negative, or rather is positive and non-negative.
1937 Mind 46 58 Gödel's procedure of arithmetization consists essentially of the establishment of a one–one correlation between all possible series of symbols belonging to the ‘object language’..and certain non-negative integers.
1966 Math. Rev. 31 22/1 Representations of natural numbers as sums of nonnegative kth powers.
1988 Rev. Financial Stud. Summer 161 A limited-liability asset is defined to be a traded asset whose payoffs at time 1 are always nonnegative and strictly positive with positive probability.
2000 N.Y. Times (Electronic ed.) 4 Oct. There was some non-negative news for the network. Despite being drubbed by critics, ‘Deadline’, the newspaper drama, did all right.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.1753
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更新时间:2024/9/21 2:41:51