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高斯消去法

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In the light of the complex, high-level and non-linear feature of the mathematical model which describe the transport of the coalbed methane, this paper study the fully-implicit solving method of the mathematical model in detail. Based on the complexity of the algebraic equations which are formed eventually, according to the alternating direction implicit difference pattern, this paper use the iterative method and the fully main element Gauss-Jordan eliminating method to solve equations, which is to use the iterative method to determine coefficient matrix and use the fully main element Gauss-Jordan method to solve th linear algebraic equation group, at the same time of studying the solving method of the mathematical model, according to the devising requirement of FORTRAN77 program structure, this paper draw up computer program and form the corresponding computer model, and verify the validity and reliability of the model in theory by operating the model.

重点研究了模型内、外边界及有关参数的处理,针对描述煤层甲烷运移的数学模型是一个复杂、高阶非线性数学模型的特点,详细研究了模型的全隐式求解方法,根据最后形成的代数方程组的复杂性,按交替方向隐式差分格式,采用迭代与全选主元高斯约当消去法相结合的方法求解方程:即确定系数矩阵采用迭代法,求解线性方程组时采用全选主元高斯约当消去法,在研究模型解法的同时按FORTRAN结构化程序设计的要求,编制计算机程序,形成相应的CBMRS计算机模型,并通过模型的运行从理论上证明了模型的正确性与可靠性。

The solution of linear equations used are all familiar with the Gauss-Jordan elimination method.

而在解线性方程时采用大家所熟悉的高斯—约当消去法。

This is what I have written out of the Gaussian Elimination PCA VC procedures simple and practical!

这个是我自己编写的高斯列主元消去法的VC程序,简单实用!

Out of the main elements of Gaussian Elimination Act.

++编写的高斯列主元素消去法。

When up to 31th harmonics are analyzed, the calculation time is only 1/82 of theat by the classical Gaussian elimination method.

对于一个周期值事先不知道,在一个周期内有100个采样点的非整周期采样,这个近似方法可使谐波分析的准确度由一般的DFT的10〓量级提高到10〓量级;当分析至31次谐波时,计算时间约为经典高斯消去法的〓,将能满足实际的工程需要。

Report : Programming Environment : Newton MATLAB7 K polynomial interpolation procedures to achieve Romberg of Quadrature program Gaussian out PCA Elimination of the program.

计算方法实验报告:编程环境:MATLAB7.0 牛顿K次插值多项式的程序实现龙贝格求积公式的程序实现高斯列主元消去法的程序实现。

Report : Programming Environment : Newton MATLAB7 K polynomial interpolation procedures ...

计算方法实验报告:编程环境:MATLAB7.0 牛顿K次插值多项式的程序实现龙贝格求积公式的程序实现高斯列主元消去法的程序实现。

By a large scale test ,we get the balance point of the traditional BEM and fast multipole BEM up to 1700~1800 degrees of freedom.

因此,需要大容量的内存,而方程组的求解一般采用高斯消去法或由它演变得到的其他方法。

Having assembled nodal physical matrice and put related boundary condition and loads into the problem, direct Gaussian elimination algorithm is used to obtain the displacement of the model. Finally, stresses on each node are also calculated.

得到节点的组合物理矩阵之后,并施加相关的边界条件和载重来代入此问题中,并直接使用高斯消去法来获得模型的位移,最后可以计算出每一个节点的应力。

Report : Programming Environment : Newton MATLAB7 K polynomial interpolation procedures to achieve Romberg of Quadrature program Gaussian out PCA Elimination of the program.

详细说明:计算方法实验报告:编程环境:MATLAB7.0 牛顿K次插值多项式的程序实现龙贝格求积公式的程序实现高斯列主元消去法的程序实现。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。