Filon quadrature

用法例句

In mathematical analysis,it is difficult to count several improper integrals,such as Fresnel integral,because it need use some special techniques.

在数学分析中,菲涅耳积分等几个重要的广义积分计算时需要引入一些特殊的技巧,一般难于掌握。

The Fresnel integral can be computed on the basis of geometrical properties of the Cornu spiral.

利用科纽卷线的几何特性 ,可以计算菲涅耳积分。

Computing complex argument Fresnel integral is a difficult problem meeting in electromagnetic scattering of lossy dielectric wedges.

本文综合运用了复宗量菲涅耳积分的小宗量级数展开和大宗量渐近展开,并且找到了大宗量展开与小宗量展开的衔接部,圆满地解决了菲涅耳积分在整个复平面内的计算机计算问题。

By the transformation of integration path,Sommerfeld integrals in the expressions are calculated numerically.

本文推导了有耗介质层内垂直电偶极子激励场的表达式，通过积分路径变换的方法，对表达式中的索末菲积分进行了数值计算。

With the study of boundary condition of vector potentials and the application of Image Method and Sommerfeld Integrals, This thesis deduces the vector potentials of vertical and horizontal dipoles near an interface (both above and below the interface).

本文通过磁矢位边界条件的研究，应用镜象法和索末菲积分，推导出半空间界面附近(包括上、下半空间中)的垂直电偶极子和水平电偶极子的磁矢位。

By means of discrete complex image theory(DCIT),the Sommerfeld integrals (SI) involved were accurately calculated at a speed several hundred times faster than numerical integration method(NIM).

分析和设计了一种宽频带微带贴片天线应用全波分析法（ＦＷＡＭ）研究表明，双层重叠微带贴片天线（ＳＭＤＰＡ）具有比普通单贴片微带天线宽得多的带宽利用离散复镜像理论（ＤＣＩＴ）精确计算了所涉及的索末菲积分（ＳＩ），其速度比数值积分法（ＮＩＭ）快数百倍通过改进ＳＭＤＰＡ的馈电结构，使其带宽在ｓ≤２时展宽至２２％以上最后，设计了匹配网络，从而使其带宽在ｓ≤１５时达到约２５％

The problem of horizontal wire antenna radiating over a lossy half-space is usually treated through solving the generalized electric field integral equation,which contains Sommerfeld integrals within its green′s function.

有耗媒质半空间上线天线辐射问题通常归结为求解含有索末菲积分的广义电场积分方程来处理。

Newton-Cotes formula

牛顿－柯特斯求积公式

On Compound Multiplicative Formula and Romberg Algorithm;

复合求积公式与Romberg算法

Quadrature Formulas of H_m~T(θ) Type(Ⅰ);

H_m~T(θ)型求积公式(Ⅰ)

Differential Quadrature Method and Differential Quadrature Element Method--Theory and Application;

微分求积法和微分求积单元法——原理与应用

Program design for coefficient of Newton-Cotes and integral algorithm of compound Gauss

Newton-Cotes求积系数与复合Gauss求积算法的程序设计

On the Boundary Type Cubature in Multiple Numerical Integration;

高维数值积分边界型求积公式的研究

Numerical solutions of Burgers' equation by harmonic differential quadrature method

用调和微分求积法数值求解Burgers方程

The Parameter Optimisation of the construction of fourpoint-Quadrature Rule of Cauchy Principal Value of an integral

柯西主值积分四点求积公式的参数优化

The Construction of four Point-Quadrature Rule of Cauchy Principal Value of an Integral by Narameter Ogtimisation

柯西主值积分的参数优化四点求积公式

High Accuracy Mechanical Quadrature Method for Solving Nonlinear Boundary Integral Equations;

非线性边界积分方程的高精度机械求积法

Quadrature Sets in Synthetic Kernel Method for Radiation Transport

综合核方法求解辐射输运问题的求积组选取

"Be ever ready to respond, ever ready to serve."

积极主动,有求必应。

The approach to get the decomposition of the Kronecker product of matrix;

求矩阵Kronecker积分解的方法

The process of solving either a definite or an indefinite integral is called integration.

求定积分或不定积分的过程称为积分法

A Discussion of the Application of Intearal Transform;

积分变换法解微积分方程、方程组及求实积分

Total load was then obtained by graphical or numerical integration.

然后，通过图解积分或数值积分可求得总载荷。

The Solutions of Indefinite Integral in Integrand with x~(1/2);

被积函数中含有x~(1/2)的不定积分的求法

Searching the differential of volume for body of rotation and the area for surface of revolution by using the frustum of cone

利用扁圆台求旋转体的体积元素与侧面积元素