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

• 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。
• Further, presented the correlations between multifractal spectrum and logarithm of mean traffic.
  进一步研究了多重分形谱参数与平均流量对数的关联关系。
• Linear regression models are established for both logarithm of heavy metal content and normalized ratio emissivity and are used to verify the significance of the regression equations.
  建立了土壤重金属含量的对数值与发射率标准化比值的线性回归模型，并对回归方程的显著性进行了检验。
• 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。
• Analysis of a digital signature scheme based on discrete logarithm and factoring
  一个基于离散对数和因子分解的数字签名方案的分析
• Can occur if you try to calculate the square root or logarithm of a negative number.
  如果你试着计算否定数目的正直根或对数，能发生。
• The elliptic curve discrete logarithm of non singular elliptic curve over finite field has no efficient attack up to now, which made it cannot be widely applied in cryptography.
  目前，在有限域上非奇异椭圆曲线离散对数问题还没有有效的攻击方法，使其在加密技术中得到了广泛应用。
• The number of which a given number is the logarithm.
  一个已知数是某数对数的数。
• It calculates the logarithm of1 plus its argument.
  它计算1的对数和参数（1p表示“加1”）。
• 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。