second derivative

second derivative什么意思,second derivative翻译

基本解释

un.: 〔数〕二阶导数
网络: 二次导数；二阶函数；第二导数

英汉解释

• 〔数〕二阶导数

例句

• That is a critical point. And we used the second derivative to see that this critical point is a local maximum.

  这是一个临界点，考察它的二阶导数，会发现这确实是一个极大值点。

• It is unnecessary to get second derivative of target function in this algorithm, and it is simple and easy to program.

  即单参数动态搜索与黄金分割混合算法，这种算法不需要求目标函数的二阶导数，算法简单，编程容易。

• This paper describes a sensitive method for the determination of trace estrogen and androgen by second derivative convolution voltammetry.

  二阶导数卷积伏安法应用于水稻中痕量雌雄激素的检测，具有快速、灵敏、干扰少的特点。

• The computation precision can be enhanced with the consideration of second derivative.

  计算结果表明，考虑二阶导数的影响，可以提高计算精度。

• Moreover, there were certain differences in second derivative near-infrared spectra of the two samples.

  两者薄层色谱与近红外二阶导数光谱也略有不同。

• Or maybe we could perform analytic derivatives on the temperature vectors (probably second derivative to get the inflection).

  或者可能我们可以对温度向量进行解析求导（analyticderivatives，要得到形变可能需要进行二次求导）。

• The second derivative can partly remove the influence of backgrounds, but it is also limited by the anisotropy of canopy reflectance.

  二阶微分方法虽然能部分消除土壤背景的影响，但受冠层反射率非各向同性的限制。

• On that front, as with other economic data, the "second derivative" is improving -- things are still getting worse, but at a slower rate.

  正如其他经济数据一样，在这个问题上，情况仍在恶化，不过恶化的速度放慢了。

• This factor has been dubbed "the second derivative" , or the rate of change of the rate of change.

  这一因素也被称为“二阶导数”，或是变化率的变化率。

• the knots of the quadratic curve were determined by minimizing the second derivative vector of the curve.

  两个相邻数据点间的节点区间由两条二次曲线确定。