directional derivative
英 [dəˈrekʃənl dɪˈrɪvətɪv]
美 [dəˈrekʃənl dɪˈrɪvətɪv]
方向导数
双语例句
- So the derivative in any direction, tangent to g equals c, should be the directional derivative of f, in any such direction, should be zero.
所以这个与g=c相切的导数，应该是f的方向导数，在这个方向下，应该是等于0的。 - Current Status and Future Directions for Research on New Type FGM We discuss several different definitions of directional derivative and gradient vector.
新型功能梯度材料研究现状及发展方向讨论了几种不同的方向导数和梯度的定义。 - And, the slope is going to be the directional derivative in that direction OK, I think that's as graphicas I can get.
这个斜率就是此方向的方向导数，好了，我想我说的已经尽量图形化了。 - The directional derivative in a direction that's perpendicular to the gradient is basically zero.
垂直于梯度的方向上，方向导数为零。 - X It's really partial f partial x, which is also the directional derivative in the direction of i.
它是∂f/∂，也是i向量的方向导数。 - The formula is given for? calculating? generalized directional derivative by using the directional derivative of convex functions.
给出了用凸函数方向导数计算广义方向导数的公式。 - In the new method proposed, gradient direction is not directional derivative but optimized result of chaos search in local area.
该方法先在局域内用混沌优化搜索局域最优点，再将此最优点作为梯度方向，通过改变局域范围跳出局部寻优区域。 - Derivatives in higher dimensions, directional derivative and gradient.
多维微分、方向导数和梯度。 - OK, so the reason for that was that if you take any direction, you can measure the directional derivative, which means the rate of change of f in that direction.
它的一个解释是，在任意方向上，可以得到方向导数，就是f在那个方向上的变化率。 - So, for example, the directional derivative in the direction of I hat is the component along the x axes.
比如，在i向量的方向导数，就是x轴方向的分量。 - A Novel Fast Multispectral Image Fusion Algorithm Based on Directional Derivative
基于方向导数的多光谱图像快速融合新算法 - Image edge detection based on directional derivative and cubic B-spline wavelet
基于方向导数和B样条小波的图像边缘检测 - And that's basically, yes, that's the directional derivative.
基本上是的，那就是方向导数。 - So, now, similarly, the directional derivative means, actually, we'll be slicing our graph by the vertical plane.
类似地，方向导数的意思是，用垂直平面切开图像。 - Well, it's actually the directional derivative in that direction.
它其实是那个方向的方向导数。 - We discuss several different definitions of directional derivative and gradient vector.
讨论了几种不同的方向导数和梯度的定义。 - For a general convex function, directional derivative is not convex.
对于一般的非凸函数，其方向导数不具备任何凸性，可以利用一般正齐次函数的回收函数来给出它的一个上凸近似。 - The Properties of the Cone Directional Derivative and Application in Optimization
锥方向导数和锥次梯度的性质及其在最优化中的应用 - Generalized Directional Derivative and Differential of Nonconvex Two level Programming
非凸二层规划的广义方向导数和广义微分 - The directional derivative according to the vector fields was introduced.
引入了相应于矢量场的方向导数。 - The expression of its lower-Hadamard directional derivative is obtained.
考虑它的Hadamard下方向导数，给出了它的结构表达式。 - The paper describes a new three-dimensional wave equation P-R splitting migra-tion-three-dimensional P-R splitting migration using directional derivative.
本文提出一种新的三维波动方程P-R分裂偏移方法，即方向导数法三维P-R分裂偏移方法。 - The paper deals with the mean-square continuity, mean-square partial derivative, mean-square total differential, mean-square directional derivative and mean-square integration of the multiple parameter stochastic processes.
本文研究多指标随机过程的均方连续性，均方偏导数，均方全微分，均方方向导数和均方积分。 - A necessary and sufficient condition that Clarke general directional derivative is equals to common directional derivative for locally Lipschitz function is given in this paper.
本文给出了局部Lipschitz函数的Clarke广义方向导数与普通方向导数相等的一个充要条件。 - It is verified that the first directional derivative and second directional derivative of gaussian function are concessional wavelets and has the character of symmetry and dissymmetry.
证明了高斯函数，它的一阶，二阶方向导数也是容许小波，同时具有对称和反对称的性质。 - Based on the steerable wavelet multi-resolution principle, combining wavelet multi-resolution analysis and directional derivative operator, and improving the frequency property of filter, the two-dimensional multi-directional derivative wavelet filter bank was designed.
根据可操纵小波多分辨率分析的原理，将小波多分辨率分析与方向微分算子相结合，设计实现了基于二维多方向微分的小波滤波器组，提出了分辨率及方向均可调节的图像边缘检测方法。 - In this paper, we obtain constrain qualifications of multi-object optimal programming with the Hadamard directional derivative, extend Maeda and Preda's results to some extent.
利用Hadamard方向导数这一工具，获得了不等式约束条件下多目标规划问题的约束品性，这一约束品性在某种程度上是Maeda和Preda等人研究结果的进一步推广。 - Analyzing the error of JC method by means of directional derivative
用方向导数分析JC法的误差 - A discussion of the relations between continuity, partial derivative, directional derivative and differentiability of binary function is helpful for us to study binary function.
探讨二元函数的连续性、偏导数、方向导数以及可微性之间的关系，有助于我们对二元函数的学习。 - The definitions of grid data gradient ( directional derivative, gradient and maximum gradient) and their application ranges are analysed and discussed, and their analytical calculation formulas and discrete calculation formulas are given.
分析和讨论了关于网格数据梯度的定义（方向导数，梯度，最大梯度）及其应用范围，给出了解析计算公式和离散计算公式。