单词second derivative
un.: 〔数〕二阶导数
网络: 二次导数；二阶函数；第二导数
〔数〕二阶导数
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。