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单词 porism
释义

porism

/ˈpɔːrɪz(ə)m/ /ˈpɒrɪz(ə)m/
Mathematics
noun
In Euclidean geometry: a proposition arising during the investigation of some other proposition by immediate deduction from it; (in later use) a special case of a problem in which the particular values of its parameters result in the solution being indeterminate.
  • Other widely different definitions have also been given..

Origin

Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. From (i) post-classical Latin porisma a deduction, a corollary and its etymon (ii) Hellenistic Greek πόρισμα a deduction from a previous demonstration, a corollary (Euclid), a kind of proposition intermediate between a theorem and a problem from ancient Greek πορίζειν to carry, to provide, in Hellenistic Greek also to find out +-μα.

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更新时间:2024/12/23 18:56:09