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second derivative

/ˈsekənd dɪˈrɪvətɪv/
  • 二阶导数:一个函数的导数的导数。

双语例句

  1. So, what does the second derivative test say?
    那么二阶导数判定是怎样的呢?
  2. And all we did, further, is take that second derivative.
    总而言之,我们所做的就是求二阶导数。
  3. So, it's the second derivative of a position vector.
    它是位置向量的二阶导。

网络短语

  • second-derivative map
    二次微商图
  • Second Derivative Test
    二阶导数试验法
  • second derivative spectroscopy
    二阶导数谱学
  • second derivative calculation
    二次微商计算
  • second derivative action
    二次微分酌;二次导数作用

英英释义

  • In calculus, the second derivative, or the second order derivative, of a function f is the derivative of the derivative of f. Roughly speaking, the second derivative measures how the rate of change of a quantity is itself changing; for example, the second derivative of the position of a vehicle with respect to time is the instantaneous acceleration of the vehicle, or the rate at which the velocity of the vehicle is changing.