So, actually on Tuesday we'll see how to decide whether a vector field is a gradient or not, and if it is a gradient, how to find the potential function.
周二我们就知道，怎样确定一个场是不是梯度，如果确实是梯度的话，怎样算出势函数。
There is another thing that we know because if a force derives from a potential 0 then that means its curl is zero Thats the criterion we have seen for a vector field to derive from a potential.
我们还知道,如果力是由势产生的,那么其旋度是,这就是我们得到的,关于从势产生的向量场的准则。
A part of results on magnetic vector potential of circular loop are expanded, so the integral function is transformed to integrable series.
采用将圆电流磁矢势表达式中一部分展成级数，使被积函数变成可积分的函数。
The magnetic induction intensity distribution B is obtained by solving its magnetic vector potential A distribution of current-carrying circular circuit in anisotropic medium.
提出一种求解各向异性磁介质中电流磁场的新方法，通过求解各向异性磁介质中圆电流环的磁矢势A分布，求出其磁感应强度B分布。
The unique characteristics let the VSV have great potential and advantage to be a live vaccine vector and oncolysis viral vector.
VSV的这些特点使其具有巨大的优势和潜力作为一种活病毒载体和肿瘤治疗载体。
It is exemplified that, with a credible error estimation, their performances are superior to the frequently-used one, which determine internal inductance via the vector magnetic potential.
实例计算表明这两种新算法的性能优于常用的通过磁矢势求解内电感的算法，并能得到可信的误差估计。
The boundary value problem on the magnetic vector potential A is derived by introducing the magnetic vector potential A and using Maxwell's equations.
通过引入矢量磁位A并利用麦克斯韦方程组推出了以矢量磁位A为求解对象的边值问题。
The new definition of vector potential is presented in this paper According to the new definition, A and are also physical basic object in classical physics and (A, )and (E, B) are equal in status.
本文给出了矢势A的新定义。根据这新定义，A也是经典物理中的基本物理实体。（A， ）和（E，B）是平等的。
The vector magnetic potential is regarded as a variable to gain the two-dimension solution of excitation magnetic field and armature response magnetic field.
并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。
We observed that corners are the saddle points in the vector potential. The saddle point detection algorithm is based on a simple template matching. The corner detection result is given.
提出图象的角点位于该矢势图的鞍点和基于模板匹配的鞍点检测算法，并给出实际的角点检测结果。
The 3d finite element vector potential equations of non-linear anisotropic magnetostatic field have been derived in a pithy style by dyadic analysis.
借助并矢分析，分别采用加权余量法和变分法，推导出了三维非线性各向异性静磁场的矢量位有限元方程的一般计算公式。
In this paper, a general method of three dimensional vector potential solution for nonlinear magnetostatic field problem by means of the finite tetrahedral element method is presented.
本文给出了用有限四面体单元计算三维非线性恒定磁场的一般过程。
If using the scalar potential instead of the vector potential to analyze the current-carrying regions in a 3d magnetostatic field, the computing time can be greatly reduced.
在三维有限元磁场中，如果对电流区域进行适当处理，采用标量磁位进行分析，与采用矢量磁位相比，可大大提高计算速度。
If using the scalar potential instead of the vector potential to analyze the current-carrying regions in a 3d magnetostatic field, the computing time can be greatly reduced.
在三维有限元磁场中，如果对电流区域进行适当处理，采用标量磁位进行分析，与采用矢量磁位相比，可大大提高计算速度。
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