directional derivative中文是什么意思
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用"directional derivative"造句"directional derivative"怎么读"directional derivative" in a sentence
中文翻译手机版
- 【数学】方向导数。
- "directional"中文翻译 adj. 1.方向的。 2.【无线电】指向的,定向的。
- "derivative"中文翻译 adj. 导出的;派生的。 n. 1.派生物。 2.【语 ...
- "a derivative" 中文翻译 : 对迎角的导数
- "derivative" 中文翻译 : adj. 导出的;派生的。 n. 1.派生物。 2.【语言学】派生词。 3.【化学】衍生物。 4.【医学】诱导法[剂]。 5.【数学】导数,纪数,微商。 adv. -ly
- "derivative of" 中文翻译 : 阶导数
- "directional" 中文翻译 : adj. 1.方向的。 2.【无线电】指向的,定向的。
- "ableitung derivative" 中文翻译 : 导数
- "absolute derivative" 中文翻译 : 绝对导数
- "acceleration derivative" 中文翻译 : 加速度导数
- "acid derivative" 中文翻译 : 酸衍生物
- "acyl derivative" 中文翻译 : 酰基衍生物
- "aerodynamic derivative" 中文翻译 : 空气动力导数; 气动导数
- "aeroelastic derivative" 中文翻译 : 气动弹性导数
- "aha derivative" 中文翻译 : 果酸嫩肤剂
- "alkyl derivative" 中文翻译 : 烃基衍生物; 烷基衍生物
- "amine derivative" 中文翻译 : 胺衍生物
- "aminophenyl derivative" 中文翻译 : 氨基苯衍生物
- "angular derivative" 中文翻译 : 角导数; 角微离; 角微商
- "anthraquinone derivative" 中文翻译 : 蒽醌衍生物
- "approximate derivative" 中文翻译 : 近似导数
- "areal derivative" 中文翻译 : 面积导数
- "azo derivative" 中文翻译 : 偶氮衍生物
- "benzene derivative" 中文翻译 : 苯衍生物
- "benzofuran derivative" 中文翻译 : 苯并呋喃衍生物
- "bilateral derivative" 中文翻译 : 双侧导数
例句与用法
- Derivatives in higher dimensions , directional derivative and gradient
多维微分、方向导数和梯度。 - Derivatives in higher dimensions , directional derivative and gradient
在多维度中的微分、方向导数和梯度。 - Error estimates of directional derivatives of approximately specified functions
近似已知函数方向导数的误差估计 - We discuss several different definitions of directional derivative and gradient vector
摘要讨论了几种不同的方向导数和梯度的定义。 - Secondly , the new generalized gradient is introduced to take advantage of the given directional derivative
其次讨论了一类新的广义梯度,这样的广义梯度能够充分利用已经有的方向导数的信息。 - As the directional derivative defined in this paper does n ' t show convexity , when its properties are considered , it is necessary to search for new ways to reach the conclusion
本文定义的广义方向导数在一般情况下不具有凸性,因而研究其性质时,要采用新的方法来得到类似的结论。 - Used perturbed method and making inexact generalized gradient projection with cone , perturbed generalized gradient projection method is proposed . the field of the algorithm is extended . numerical experiments show that the method is effective . secondly , using the trust region form and the pseudo - directional derivative of minimax problem , we propose the trust region form of minimax problem
对信赖域法作了进一步的研究,借助minimax问题的伪方向导数,构造出其信赖域二次模型,并结合非单调策略,给出求解minimax问题的简单易行的信赖域算法。 - Section 3 and section 4 are the main parts of the paper . by employing the directional derivative and generalized gradient in the broad sense , as defined in this paper , the first order necessary condition and the first order sufficient condition of the single - objective non - smooth programming where the objective function is d - regular weak lipschitz function and constrained functions are regular weak lipschitz functions
第三节和第四节是本文的主要章节,以本文定义的广义方向导数和广义梯度为分析工具,对目标函数为d正则弱l函数,约束函数为正则弱l函数的单目标非光滑规划分别给出了一阶必要条件和一阶充分条件。 - Finally , this thesis discussed these following questions : first , the algorithm of used the error image for improving the purpose of the edge detection . secondly , we have transformed the solved question of the first and the second directional derivative to frequency domain and founded they have a single formulae in frequency domain . thirdly , we have described the singular signal and the noise by using the correlations of the neighbor data after wavelet transform
最后,在传统的边缘检测算法和小波分析的边缘检测算法之外,对以下几个方面也进行了一些讨论: 1 )利用误差图像来提高边缘检测效果的算法; 2 )将求解任意方向的一阶、二阶方向导数的问题转换到频域中去求解,发现在频域中它们具有简单易用的公式,使得原来求解任意方向的一阶、二阶导数的比较困难的问题变得容易实现了。 - Let / be a function from rn to r . following the definitions of the generalized gradients proposed by clarke and xu yihong , respectively , we define the d - regular weak lipschitz function and propose a new generalized gradient as follows where d _ f ( x ; d ) is the directional derivative of / in the direction d at the point x , namely some properties are proposed
第二节引入基本定义和记号,在clarke和徐义红提出的各自的广义梯度的基础上,定义了一类d正则弱l函数,且提出了一个新的广义梯度。设f : r ~ n r ,其广义梯度为其中为f在处沿方向d的方向导数,即并给出了若干性质定理。
其他语种
百科解释
In mathematics, the directional derivative of a multivariate differentiable function along a given vector v at a given point x intuitively represents the instantaneous rate of change of the function, moving through x with a velocity specified by v. It therefore generalizes the notion of a partial derivative, in which the rate of change is taken along one of the coordinate curves, all other coordinates being constant.
详细百科解释
相关词汇
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