| 单词 | logarithm |
| 释义 | logarithm n. 1. one of a series of arithmetic exponents tabulated to simplify computation by making it possible to use addition and subtraction instead of multiplication and division. 2. the power to which a fixed number or base ( see BASE(1) 7) must be raised to produce a given number (the logarithm of 1000 to base 10 is 3). Usage Abbr.: log. Phrases and idioms common logarithm a logarithm to the base 10. natural (or Napierian) logarithm a logarithm to the base e (2.71828.....). Usage Abbr.: ln or log**. Derivatives logarithmic adj. logarithmically adv. Etymology: mod.L logarithmus f. Gk logos reckoning, ratio + arithmos number |
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