first derivative

英 [fɜːst dɪˈrɪvətɪv]

美 [fɜːrst dɪˈrɪvətɪv]

一阶导数

英英释义

noun

• the result of mathematical differentiation
  Synonym:derived functionderivativedifferential coefficientdifferential

双语例句

• Study on the determination of tung oil adulterated in vegetable oils by first derivative spectrophotometry
  一阶导数光谱法测定食用植物油中桐油掺混的研究
• Method: To apply first derivative spectral.
  方法：采用一阶导数光谱法测定本制剂中丹皮酚的含量。
• The first derivative is more important than just the position of their regard for us, getting better and better.
  态度的改观，比一开始对我们的看法更为重要，会越来越好。
• Two-dimensional cubic Hermite interpolation method realizes the continuity of the first derivative and makes the result smooth.
  另一种方法是两维三次Hermite插值法，三次Hermite插值的优势在于它实现了插值结果一阶导数连续，使结果更加光滑。
• And this, you will recognize is the first derivative of velocity versus time which is also the second derivative of position versus time.
  这点想必诸位已经了然于胸，它就是速度对，时间的一阶导数，也是位置对，时间的二阶导。
• And that is a point where the first derivative is zero.
  这点的导数为零。
• So the slope of the guess is the first derivative.
  因此斜率等于此处的一阶导数。
• That's the first derivative of that position here.
  是这里的，一阶导数。
• Making use of the fourth-order compact difference formula of the first derivative term, anew high accuracy difference scheme for the two-dimensional convection reaction equation is proposed.
  利用一阶偏导数项的四阶紧致差分算子，直接推导出了数值求解二维对流反应方程的一种新的高精度紧致差分格式。
• The powder pharmaceutical samples of sulfaguanidine are analyzed nondestructive by conventional and first derivative near infrared diffuse reflectance spectra.
  用常规和一阶导数近红外漫反射光谱法非破坏分析了粉末药品磺胺脒。