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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

          • 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。
          • 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。
          • 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。
          • 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
          • 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。
          • This paper analyzed principles in dealing with the order of logarithm times, and determined right order of times to predict fatigue lifetime.
            分析了对数阶次处理的原则,确定了适合桁架结构疲劳寿命预测的阶次;
          • Returns the logarithm ( base-specified) of a value.
            返回某个值(以指定底为底)的对数。
          • The merits and deficiencies of the logarithm model in air combat capability assessment of fighter aircrafts are analyzed.
            详细分析了对数法模型评估飞机空战能力时的优点和不足之处。
          • The number of which a given number is the logarithm.
            一个已知数是某数对数的数。
          • 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。