查询词典 sum of series

Analytical expressions for electromagnetic fields of a vertical or horizontal electric dipole over the finitely conducting plane are derived subject to the boundary conditions; Sommerfeld type integral contained in Hertz potential is expressed as the sum of two parts: zeroth order Hankel function and an absolutely convergent series of spherical Hankel function.

在此边界条件下，推导出有限导电平面上垂直和水平电偶极子电磁场的解析表达式；赫芝位函数中的索末菲型积分被表达成零阶汉克尔函数与绝对收敛的球汉克尔函数级数之和的形式。

The optimal control law obtained consists of linear analytic functions and a compensation term which is a series sum of the adjoint vectors. The analytic functions can be found by solving a Riccati matrix difference equation and a matrix difference equation. The compensation term can be obtained by a recursion formula that solves adjoint vector equations.

得到的最优输出跟踪控制律由状态向量的线性解析函数和伴随向量级数形式的补偿项组成，其解析函数由一次性求解Riccati矩阵差分方程和矩阵差分方程得到，补偿项由求解伴随向量差分方程的递推公式得到。

Business intelligence is the sum of a series of methods, techniques and software, which uses advanced information technology to the whole enterprise. It' s not a single product, but a solution, a concourse of concept, means, process and software to improve the ability of decision and management.

商务智能是将先进的信息技术应用到整个企业的一系列方法、技术和软件的总和，它不是一个单纯的产品，而是一个解决方案，是帮助企业提高决策能力和运营能力的概念、方法、过程及软件的集合。

Speaking nonrigorously, it allows us to attach a meaning to the 'sum' of certain types of divergent series.

不严格讲话，允许我们附加一个意思到总和'某些类型的分歧的系列中。

The product of Fourier series and a finite sum of complex Gaussian functions is used to approximate the window function of a hard-edged aperture, an improved algorithm for the beam propagation through a paraxial ABCD optical system with hard-edged aperture is proposed.

使用傅里叶级数与有限个复高斯函数之和的乘积作为硬边光阑的窗口函数的近似式，提出了含硬边光阑近轴ABCD光学系统对光束变换的改进算法。

The sum of the series, it is necessary to pay attention to the scope of application of the formula and the formula derived process, to observe the series of characteristics and laws.

对于数列的求和，要注意公式的应用范围和公式的推导过程，注意观察数列的特点和规律。

We analyze the mathematical model of JEM echoes consisting of a series of line spectra and regard them as a sum of several series of harmonious waves.

我们从模式分类的角度提出了利用JEM特征谱散布程度特征进行目标分类的方法。

How to calculate the sum of P-series by Fourier series ;2. Fourier series was utilized to fit the stress and strain of tire in a rolling cycle by means of mechanic-field analytic result.

利用轮胎力学场的数值分析结果，采用傅立叶级数拟合单元在轮胎滚动一周内的应力-应变变化，并根据拟合后的傅立叶系数计算轮胎单元损耗应变能和生热率，分析了轮胎在不同速度时的温度场。

Where the nth term is said to be the general term of the series, moreover, the nth partical sum of the series is given by .

叫做无穷级数，简称级数，记为，即其中第项叫做劫数的一般项。称为级数(1)的部分和。

Using analysis of correlation between meteorological output index of cotton and factor series of 9 types of cumulative temperature formed by continuously temperature limits at the interval of 0.1℃ in Akesu cotton area, several conclusion obtained are as follows:(1)The correlation with temperature sum of daily maximum temperature is the best, cumulative temperature of daily mean temperature is better, and temperature sum of daily minimum temperature is the worst.

通过阿克苏棉区棉花产量指数与以 0 。1℃为间隔的连续变动温度界限值所形成的 9种积温的因子序列的相关性分析，得到以下几点结论：(1 )相关性以日最高温度的温度和为最好，日平均温度积温次之，日最低温度的温度和最差。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。