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

• Returns the natural logarithm of a number.
  返回一个数的自然对数。
• 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
• 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。
• 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 natural logarithm of this ratio is called the logarithmic decrement.
  此比率自然对数称为对数的减量。
• 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 logarithm ( base-specified) of a value.
  返回某个值（以指定底为底）的对数。
• In cryptography, we also need to discuss modular logarithm.
  在密码学中，我们也需要讨论模对数。
• The fifth day is the logarithm stage for the mycelium growth.
  菌丝体生长的第五天为菌丝对数生长阶段。