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单词 lemniscate
释义

WordReference Random House Unabridged Dictionary of American English © 2024
lem•nis•cate  (lem niskit, lemnis kāt′, -kit),USA pronunciation n. [Analyt. Geom.]
  1. Mathematicsa plane curve generated by the locus of the point at which a variable tangent to a rectangular hyperbola intersects a perpendicular from the center to the tangent. Equation:r2=2a2cosθ. Also called Bernoulli's lemniscate. 
  • Latin lēmniscātus adorned with ribbons. See lemniscus, -ate1
  • 1775–85

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