| 单词 | logarithm |
| 释义 | logarithm['lɒ:gəriðəm]n. 对数【经】 对数 logarithm log.a.rithm AHD: [lô“g…-r¹Y”…m, l¼g“…-] D.J. [6l%8g*7r!H*m, 6lKg*-]K.K. [6l%g*7r!H*m, 6l$g*-]n.Mathematics （名词）【数学】 The power to which a base, usually 10, must be raised to produce a given number. Ifn x = a, the logarithm of a, with n as the base, is x; symbolically, log n a = x. For example, 10 3 = 1,000; therefore, log 10 1,000 = 3. The kinds most often used are the common logarithm and the natural logarithm. 对数：为使某数等于一给定数而必须取的乘幂的幂指数。如果n x=a, ，以 a 为底 n 的对数就是 x ；表示为log na=x 。如，10 3=1,000；于是log 101,000=3。通常使用的有常用对数和自然对数 语源:1. New Latin logarithmus 现代拉丁语 logarithmus 2. Greek logos [reason, proportion] * see leg- 希腊语 logos [原因，均衡] *参见 leg- 3. Greek arithmos [number] * see ar- 希腊语 arithmos [数字] *参见 ar- 继承用法:log”arith“mic AHD: [-r¹Y“m¹k] 或 log”a.rith“mi.cal [-m¹-k…l] （形容词）log”arith“mically adv.（副词） |
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