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单词 second derivative
释义

second derivative

美 
英 
  • un.〔数〕二阶导数
  • 网络二次导数;二阶函数;第二导数
un.
1.
〔数〕二阶导数

例句

释义:
1.
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。
open.163.com
2.
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。
www.chemyq.com
3.
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。
www.chemyq.com
4.
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。
dictsearch.appspot.com
5.
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。
www.zgyxzz.com.cn:8080
6.
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)。
www.ibm.com
7.
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。
dictsearch.appspot.com
8.
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。
www.bing.com
9.
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。
www.bing.com
10.
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。
www.ceps.com.tw
1.
At the stable point, the second derivative of the potential energy versus x is positive.
在稳定点,势能在x方向的第二,种分力是正值。
open.163.com
2.
So the first thing I have to do, I have to find what the second derivative is of x as a function of time.
因此我首先要做的,就是发现,x关于时间的函数的,二次导数。
open.163.com
3.
The second derivative, they say, is turning positive. That means that although the economy is spiralling down, it is doing so more slowly.
他们说,二阶导数正在趋正,意思是:尽管经济仍在下滑,但是下滑的速度减缓了。
www.ecocn.org
4.
Figure 4: Second derivative math pretreatment of calibration spectra.
图4:校准光谱的第二个衍生的数学预处理。
www.pharmst.cn
5.
So, it's the second derivative of a position vector.
它是位置向量的二阶导。
open.163.com
6.
At the unstable point, the second derivative is negative.
在不稳定点,它是负值。
open.163.com
7.
The automatic peak-seeking algorithm was based on the covariance and second derivative.
通过协方差法和二阶求导法实现了光谱峰位的自动检测;
www.fabiao.net
8.
We cannot use second derivative tests or anything like that.
我们不可以用2阶导数来观察或者别的什么方法。
open.163.com
9.
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。
open.163.com
10.
and we write it as the second derivative of position.
我们把它写成位移的二阶导数
dongxi.net
1.
So, what does the second derivative test say?
那么二阶导数判定是怎样的呢?
open.163.com
2.
Basically, the answer for us is that we don't have a second derivative test in this situation.
基本上,答案就是,我们不可以用二次导数来验证这个情况。
open.163.com
3.
Measurement of content of compound diphenhydramine hydrochloride with double-wavelength second derivative spectrophotometry
双波长二阶导数光谱法测定盐酸苯海拉明合剂的含量
www.ilib.cn
4.
Quantitative Determination of Sulfamethoxazole by Second Derivative Differential Pulse Polarography
磺胺甲噁唑的二阶导数差示脉冲极谱法测定
scholar.ilib.cn
5.
Determination on levamisole hydrochloride in compound mebendazole tablet by second -derivative spectrophotometry
二阶导数光谱法测定复方甲苯咪唑片中盐酸左旋咪唑的含量
www.ilib.cn
6.
A Accuracy investigation of second derivative method to determine an end point of weak acid-Bases potentiometric titration
二级微商法确定弱酸碱电位滴定终点准确度的分析
beta.ilib.cn
7.
Second Derivative FTIR Spectroscopic Study of Bacillus Cereus
蜡样芽孢杆菌的二阶导数红外光谱研究
www.ilib.cn
8.
Direct Determination of Nitrate in Drinking Water by Ultraviolet Second-derivative Spectrophotometry
紫外导数分光光度法直接测定饮用水中的硝酸根含量
www.ilib.cn
9.
Generalized Second Derivative Method and Boundedness for Impulsive Differential Systems with Delay
广义二阶导数方法与具有时滞的脉冲微分系统的有界性
www.ilib.cn
10.
Study on Method of Determination of the Content of Sesame Oil by Second Derivative Ultraviolet Spectrophotometry
用二阶导数紫外分光光度法直接测定芝麻油含量
scholar.ilib.cn
1.
Determination of dyclonine in compound ribavirin ointment by second derivative spectrometry
二阶导数光谱法测定复方利巴韦林软膏中达克罗宁含量
www.ilib.cn
2.
Determination of Tetracaine Hydrochloride in DianGuangling Eye Drops by Second Derivative Spectrophotometry
二阶导数光谱法测定电光灵滴眼剂中盐酸丁卡因含量
www.ilib.cn
3.
I tell you something about the second derivative of a function
我告诉你一个函数的二阶导数
dongxi.net
4.
Quantitative Determination of Aesculin in Cortex Fraxini Caulis by Second - derivative Differential Pulse Polarography;
定量测定秦皮中秦皮甲素的二阶导数示差脉冲极谱法
dict.bioon.com
5.
Methodology of XRD Second Derivative Fingerprint for Traditional Chinese Medicine
中药XRD二阶导数指纹图谱的研究
www.ilib.cn
6.
Determination of Tetrandrine in Gel by Second Derivative UV Spectrophotometry
二阶导数紫外分光光度法测定粉防己碱凝胶的含量
www.ilib.cn
7.
The second derivative and higher order derivatives of a function
二阶及以上导数
bbs.kaoyan.com
8.
A Comparative Study on the Resolution of Second Derivative and Fourier Self-Deconvolution
二次微分和傅里叶解卷积技术的表观分辨率研究
www.ilib.cn
9.
Determination of Cysteine in Wines by Second Derivative Abridged Oscillographic Voltammetry
二次微分简易示波伏安法直接测定酒样中半胱氨酸
www.ilib.cn
10.
Quality Control of Corydalis Yanhusuo W. T. Wang by Second Derivative FTIR Spectroscopy Combined with Statistics
导数FTIR结合统计学法应用于中药延胡索质量控制的研究
scholar.ilib.cn
1.
your job is to guess a function whose second derivative is a,
你的任务是要猜出一个二阶导数为a的函数
dongxi.net
2.
Vertical second derivative of gravity
重力垂向二阶导数
www.wutan.cn
3.
If I take the second derivative I get 2,
如果我再求二阶导数就能得到2
dongxi.net
4.
the second derivative of bending moment with respect to x
弯矩对x的二阶导数
wenku.baidu.com
5.
The Methods of Solving some Kinds of Second Derivative Calculus Equations
关于几类二阶微分方程的解法
www.ilib.cn
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更新时间:2025/8/3 0:31:35