he thickness of a real diffraction flat has a gigantic influence on the integral region of scalar diffraction law.
实物衍射平板厚度对标量衍射公式的积分区域有很大影响，入射光的类型、位置不同，平板厚度不同，则积分区域也不同。
Nowadays,almost all the general mathematic softwares can t directly calculate double integral,they only can be used to calculate repeated integral,the softwares can t recognize and deal with complicated domain of integration.
目前常用数学软件包无法直接进行二重积分的运算,只能处理累次积分,难以处理复杂的积分区域,文章基于有关数学定理提出一种新型算法,通过对积分区域和边界条件进行判断和处理,实现二重积分与累次积分之间的转换,使常用数学软件包能够直接计算二重积分,从而简化运算过程,提高计算效率。
In this paper, a formula that transforms a kind of domain integral into domain boundary integral is given.
给出把一类n维区域积分转化为n维区域边界积分的公式,从而得到一种新的基于区域积分与区域边界积分多次相互转化的简化积分计算的方法,并利用该方法得出一些新的用一般方法较难计算的积分的值。
The use of Cartesian grids is proposed to treat domain integrals encountered in the numerical solution of Poisson equations with boundary integral equations.
提出用规则网格来处理用边界积分方程方法数值求解Poisson方程时遇到的区域积分问题的新方法。
Calculating Multiple Integral by Odevity of Function and Symmetry of Regions
利用函数奇偶性和积分区域对称性计算重积分
The Stability of Singular Integral When the Boundary Curve of Domain of Integration Perturbs
三类奇异积分关于积分区域边界摄动的稳定性
Using special integrating region and special integrand to simplify calculation of double integral;
利用特殊积分区域及特殊被积函数简化二重积分计算
Analysis of the error between accumulating the area of subregion and large area dividing
大区域划分为子区域进行面积累加的误差分析
Construction of the Regional Elements of Differential Calculus and Re-integration into a Single-integral Directly
构建区域元素一元微分 重积分直接化为单积分
REGIONAL MINEROGENETIC ANALYSIS OF LOWER CAMBRIAN SEDIMENTARY ORE DEPOSITS IN GANSU
甘肃下寒武统沉积矿产区域成矿分析
Segmentation for Qusic-circular Accumulation Object with Multiplex Method;
多方法融合的类圆形堆积物区域分割
Two Dimensional High Fractional Order Sigular Integrals with Sigularity Lies in the Interior of the Domain;
奇点位于区域内部的二维高分数阶奇异积分
The integral characters of binary symmetrical function in the symmetrical region;
对称区域上的二元对称函数的积分性质
Eyes locating based on gray-level integral projection and region growth
基于灰度积分投影与区域生长的人眼定位方法
Characteristics of vegetation types and distributions around the Red River,Vietnam
越南红河流域区不同沉积环境的植被分布
ENGINEERING GEOLOGY ANALYSIS OF COLLUVIAL SLOPE AT HYDROPOWER STATION PROJECT IN GUSHUI
古水水电站工程区域堆积体边坡工程地质分析
An integration scheme for discontinuities in the extended finite element method
扩展有限元中非连续区域的一种积分方案
Fundamental concept of calculus related to areas and other quantities modeled by functions.
微积分的基本概念,涉及函数所围成的区域的面积与数量。
Relationship Between Heavy Metal Distribution of Surface Sediment and Regional Dynamic Sedimentation Pattern in Laizhou Shoal
莱州浅滩表层沉积物重金属分布与区域动力沉积格局关系
Regional Variations and Their Mechanism Analysis of Soil Property of Surface Sediment in the Chengdao Sea Area of the Huanghe Esturary
黄河口埕岛海域表层沉积物土性的区域变化及其机理分析
In this paper, the differential quadrature domain decomposition method is applied to a kind of nonlinear singular perturbation problems.
应用微分求积区域分裂法求解非线性奇异摄动问题。
The Spatial Distribution and Properties of Snow Cover in Binggou Watershed,Qilian Mountains: Measurement and Analysis
祁连山区冰沟流域积雪分布特征及其属性观测分析