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单词 delta function
释义

WordReference Random House Unabridged Dictionary of American English © 2024
delta func′tion, [Physics, Math.]
  1. Mathematics, Physicsa generalized function having the value 0 except at 0, the value infinity at 0, and an integral from minus infinity to plus infinity of 1, used in thermodynamics and quantum mechanics. Also called Dirac delta function. 

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