积分元

MATLAB程序-used method for multiple preoperational Ertaila equation here as a variable element of the equation, As the same time contain differential equations and integral, the general solution is definitely difficult.

用LAPLACE方法求解多维沃尔泰拉方程，此处为一个变元的方程，由于该方程同时含有微分和积分，一般求解有一定的困难。

To perfect it,this paper,by using the basic knowledge in definite integral Newton—'Leibniz formula,offers an applied method of definite integral,partial quantity function infinitesimal calculus method,which is both theoretically reliable and easily applied.

一般教材都使用"微元法"给出被积函数，这一方法在理论上并非严格，为弥补该方法在理论上的不足之处，将定积分的应用方法总结为"部分量函数微积分法"。

A set of analytical integral method of triangular element linear interpolation BEM has systematically been deduced and put forward.

提出并系统推导了一套三角形线性插值边界元的解析积分公式。

Boundary element method is a kind of numerical algorithm on boundary; it is based on the boundary integral equation and employs the element discretization technique.

边界元属于边界型的数值方法，它是以边界积分方程为数学基础，同时采用了有限元法的单元离散技术。

Irregular frequency ; hydrodynamic coefficients ; integral equation theory ; boundary element method

不规则频率；水动力系数；积分方程理论；边界元方法

Thin body ; acoustic impedance ; integral equation ; boundary element method

薄壳体；声阻抗；积分方程；边界元方法

The differences of the static electric energy and the elastic energy in different directions of spontaneouse polarization in polar regions are calculated by using numerical integral and boundary element method.

采用数值积分和边界元方法，通过计算机计算了极性微区在极化方向不同时，其间静电耦合能量和弹性耦合能量的差异。

The main work of this thesis is devided into two parts: We give nesserary and sufficient conditions on the C-resolvent of A to guarantee that the C-semigroup be an ideal of integral operator s.

本文的主要工作分为两部分：对C半群属于某一类积分算子理想给出了基于其生成元的C豫解式的一种刻画，该条件还是一个充要条件。

Application of HHGL to lithium atom As a starting point for exactly solving schrodingerequation for lithium,the part has twofold purpose,one isto derive the coupled hyperradial differential equation,and discuss whether HHGL can be used or not,the other isto build the symmetric basis functionfor twodimensional irreducible representation of 〓 permutationgroup and estimate the ground-state eigenenergy.

首先根据Pauli原理的要求，将N电子原子的波函数向〓群不可约表示之基展开，积分掉角度部分，推导出N电子原子的超球径耦合微分方程，其形式与氦原子耦合微分方程相似，差别表现在矩阵元〓的计算上。

Deviate argument; Limit circle case; Limit point case; The boundedness of solutions; Integral inequality

基础科学，数学，数学分析偏差变元；极限圆型；极限点型；有界性；积分不等式

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。