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。
• 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 natural logarithm of this ratio is called the logarithmic decrement.
  此比率自然对数称为对数的减量。
• If we use exponentiation to encrypt or decrypt, the adversary can use logarithm to attack.
  如果我们运用求幂运算来加密和解密，对手就可以运用对数进行攻击。
• In this paper, one method of jamming effectiveness evaluation for speech communication based on the power added logarithm spectrum distance of two speech signal is presented.
  介绍了利用两个语音信号序列的加权对数谱距离对语音信号的干扰效果进行评估的方法。
• A threshold group signature scheme based on RSA and discrete logarithm
  基于RSA与离散对数的门限群签名方案
• It calculates the logarithm of1 plus its argument.
  它计算1的对数和参数（1p表示“加1”）。
• The hyperelliptic curve cryptosystem is based on the hyperelliptic curve discrete logarithm problem, and has the higher safety and the shorter operands compared to other cryptosystems.
  超椭圆曲线密码体制是以超椭圆曲线离散对数问题的难解性为基础的，具有安全性高、操作数短等优点，相对于其他密码体制有明显的优势。
• The potential of reductive peak is linear with the logarithm values of scan rate.
  还原峰的峰电位与扫描速率的对数值呈线性关系。
• The security of the scheme is set up on the intricate nature of the elliptic curve discrete logarithm problem and the knapsack problem.
  方案的安全性建立在椭圆曲线离散对数问题和变形的背包问题的难解性上。