logarithm

英 [ˈlɒɡərɪðəm]

美 [ˈlɔːɡərɪðəm]

n.  对数

复数：logarithms　

经济

BNC.27896 / COCA.31934

牛津词典

noun

• 对数
  any of a series of numbers set out in lists which make it possible to work out problems by adding and subtracting instead of multiplying and dividing

柯林斯词典

• 对数
  In mathematics, thelogarithmof a number is a number that it can be represented by in order to make a difficult multiplication or division sum simpler.

英英释义

noun

• the exponent required to produce a given number
  Synonym:log

双语例句

• While this doesn't sound like a big deal, the difficulty of factoring and finding a discrete logarithm forms the basis of most if not all public-key cryptography systems.
  虽然听起来这并不是什么了不起的事，但分解并找到一个离散对数的困难形成了大部分公用密钥密码学系统的基础，如果不是全部的话。
• The number of which a given number is the logarithm.
  一个已知数是某数对数的数。
• Returns the natural logarithm of a number.
  返回一个数的自然对数。
• Both of their security are based on the intractability of elliptic curve discrete logarithm problem.
  两种方案的安全性都是基于椭圆曲线离散对数问题的难解性。
• A method is proposed for improving the consistency of inconsistent judgment matrix based on exponential scale, by the value of compatibility index of logarithm.
  利用对数意义下的相容性指标提出了一种基于指数标度下判断矩阵的一致性调整方法，并通过算例表明该法是切实可行的。
• The security of the new protocol was based on the discrete logarithm on elliptic curve, and the server did not need to be completely trusted.
  新协议的安全性基于椭圆曲线离散对数问题，服务器并不需要完全可信。
• Returns the logarithm ( base-specified) of a value.
  返回某个值（以指定底为底）的对数。
• Analysis of a Proxy Multi-Signature Scheme Based on Discrete Logarithm
  基于离散对数的代理多重签名方案分析
• The log() function returns the natural logarithm ( base E) of a number.
  函数的作用是：返回一个数值的自然对数。
• Methods Far sight was examined through E Standard Logarithm Eyesight Table.
  方法远视力检测使用E字标准对数视力表进行常规检查。