So, we said when we have a function of two variables, we have the gradient vector.
我们说，当一个二元函数存在时，就有梯度向量。
Magnetic vector potential is regarded as variables to gain solution of excitation magnetic field and armature response magnetic field.
以矢量磁位作为求解变量得到励磁磁场和电枢反应磁场的二维解。
This paper deals with the multivariate vector analysis of quality data by geometric transformation, rotating coordinates and computation of the principal component of initial variables.
本文讨论多元质量数据的矢量分析方法，几何变换，坐标旋转和初始变量的主分量计算不同变量的主分量值。
The effects of the joint clearance variables to the position repeatability of the robot end effector are analyzed using a two-dimensional vector method to define the joint clearance variables.
对关节间隙变量采用二维矢量表示法，分析了机器人关节间隙对机器人末端位置重复精度的影响。
The Green's functions for electric and magnetic vector potentials in a sectoral wave guide and its cavity are derivated by using the separation of variables, Fourier transform and residue theory.
文中介绍了扇面直波导及其腔体中电矢量位和磁矢量位的格林函数，采用分离变量法、傅里叶变换法和留数定理导出了格林函数的具体表达式。
Cross spectrum estimation based on a single vector sensor has turned random process in time domain into random variables in frequency domain.
单矢量传感器的互谱估计，将时域随机过程变换成了频域随机变量。
At the same time, due to the non-linear condition of time sequence, conventional linear Vector Autoregressive model can hardly characterize the causality among economic variables correctly.
同时由于时间序列的非线性，常规的线性向量自回归模型难以正确描述经济变量之间的因果关系。
Expressing decision variables of the structure optimization problem in the form of vector, a 0-1 integer nonlinear programming model is presented.
该结构优化问题的决策变量采用了向量表示方法，建立0-1整数非线性规划模型，给出了可行解存在性的判定方法。
Comparing new input vector constructed by this method with that constructed directly, the dimension of input vector is decreased and capacity of orthogonal among the variables is enhanced.
介绍了主分量分析法的原理和步骤，由此构成的新矢量，降低了输入矢量的维数，提高了变量间的不相关性。
The space of human behavioral activity is multidimensional, and the variables describing it should be vector or tensor;
人类行为活动的空间是多维的，所以描述其活动的变量应该是矢量或者张量；
A method of cluster analysis for variables was improved based on the inner relationship of a random vector.
用两类所含指标全体所构成的向量的内在相关性度量来刻画两类间的距离，改进了一种指标聚类的方法。
A method of cluster analysis for variables was improved based on the inner relationship of a random vector.
用两类所含指标全体所构成的向量的内在相关性度量来刻画两类间的距离，改进了一种指标聚类的方法。
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