曲线积分

通过对Green公式的离散变形，建立了重积分到曲线积分的公式，用多种方法推导出任意多形的面积公式。

In this paper , we derived the discrete Formula of Green and establish formula of from multiple integral to curvilinear integral . By different methods , we derive any polygon area formula .

用曲线积分计算桥梁正截面承载能力

Bearing capacity of normal section for bridge calculated by curvilinear integral

三次NURBS曲线积分问题的数值方法及应用研究

Numerical Method for the Integral of Cubic NURBS Curve and It ′ s Application

Spotlight模式合成孔径雷达成像能用沿上半圆曲线积分的层析成像来实现。

We show that Spotlight mode synthetic aperture radar imaging can be interpreted as a tomographic reconstructing problem along the upper half circular curves .

应用复分析和曲线积分方法研究了满足Hermite插值的五次PH曲线的构造，导出了其相应的Bézier表示。

Using complex analysis and curve integration , the construction of PH quintic which satisfies Hermite interpolation conditions is studied in this paper and its corresponding B é zier representation is derived .

本文定义了Fuzzy值函数及其在平面或空间可度量几何体上的积分，从而给出了Fuzzy值函数的曲线积分和曲面积分，讨论了它们的性质和计算方法。

The article defines the Fuzzy valued function and its integral on a plane or a metrizable geometric solid in space , gives out the definitions of the curvilinear and surface integral on the interval valued function and hence investigates their properties and computational methodology .

本文利用曲线积分的方法，导出了V型偶极子天线在空间任一点处远区场的一般数学表示式以及方向性函数、辐射电阻和方向性系数的计算式。

In this paper the general formulas on calculating far-field for the Vee Dipole Antenna at the space are derived from method of curvilinear integration and the field pattern , the radiation resistance and the directivity are given .

PDE模型机平均推力应处于推力壁压力曲线积分法与弹簧-质量-阻尼系统法所测推力之间。

It was estimated that the average thrust of the model PDE was between the value obtained by thrust wall pressure integration method and spring-mass-damper system method .

同时采用推力壁压力曲线积分法和弹簧-质量-阻尼系统法对一PDE模型机在不同频率多循环工况下的平均推力特性进行实验研究。

Using thrust wall pressure integration method and spring-mass-damper system method synchronously , the average thrust characteristics of a model pulse detonation engine operated in variety frequencies were investigated experimentally .

曲线积分与路径无关的另一证法

A new proof on independence of path of a line integral

曲线积分与曲面积分计算公式的新证明

New Meth to Prove Computational Formulas of Line Integral and Surface Integral

曲线积分与曲面积分中值定理

The Mean Value Theorem of Integrate of Curve and Surface

解析平面变形辊拔的曲线积分法

The Curvilinear Integration to Solve the Plane Strain Drawing Through Idling Rolls

抛物线模拔速度场的曲线积分问题

The Curvillinear Integral Problems to Velocity Field . for Drawing Through Parabolic Dies

积分路径上含有孤立奇点的第二类曲线积分

The Second Sort of Curve Integral of Isolated Odd Point in Integral Path

双曲线模平面变形拉拔挤压的曲线积分法

A curvilinear integral method to solve plane drawing and extrusion through hyperbolic dies

两类曲线积分关系的一点补充

Supplement of the Relations Between Two Curve Line Integrals

计算矢量曲线积分的常见错误分析

The Analysis of Ordinary Errors in Vector Curve Integration

曲线积分中辅助积分路径的研究

Research on Auxiliary Integral Way in Curvilinear Integration

用曲线积分法计算洪水流量的分析

Calculation of flood flow by curve integration method

平面上第二类曲线积分的对称原理

Several Principles of Symmetry for the Line Integral of Vector Fields on the Plane

曲线积分与路线无关性定理的推广

Generalization of a Theorem on the Curve Integral

复连域上的势函数及其在曲线积分计算中的应用

The Potential Function in the Multiply-Connected Region and Its Application to the Computation of Line Integrals

复连通区域曲线积分与路径无关的充要条件

Necessary and Sufficient Conditions for Path Independence of a Line Integral in a Complex Connected Region

在非单连通域上曲线积分问题的注释

A note about the question of line integrals of a function on non simply connected region

边界曲线积分方程的小波解法

Wavelet method for boundary integral equation

第二型无穷曲线积分

The second infinite curve integral

对曲线积分与路径无关的一个必要条件的改进证法

An Improved Proof of a Necessary Condition for the Independence fo the Path of a Line Integral

曲线积分的误差分析

Error Analysis of Curvilinear Integrals

关于曲线积分中值定理中间点的一个一般性结果

A More Universal Result on the Intermediate Point in the Mean Value Theorem for First Form Curve Integrals