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1stOpt 是七维高科有限公司（7D-Soft High Technology Inc.）独立开发，
拥有完全自主知识产权的一套数学优化分析综合工具软件包。在非线性回归，曲线拟合，非线性复杂模型参数估算求解，线性/非线性规划等领域首屈一指；
1stOpt 应用范围
1) 模型自动优化率定
2) 参数估算
3) 任意模型公式线性，非线性拟合，回归
4) 非线性连立方程组求解
5) 任意维函数，隐函数极值求解
6) 隐函数根求解，作图，求极值
7) 线
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In numerical linear algebra, the Gauss–Seidel method, also known as the Liebmann method or the method of successive displacement, is an iterative method used to solve a linear system of equations. It is named after the German mathematicians Carl Frie
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包括插值，函数逼近，矩阵特征值计算，数值微分，数值积分，方程求根， 非线性方程组求解， 解线性方程组的直接法，解线性方程组的迭代法，随机数生成等-Including interpolation, function approximation, eigenvalue computation, numerical differentiation, numerical integration, equation Root, non-linear equations to solve the direc
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可以实现矩阵行列式的任意变换，求任意向量的极大无关组，齐次非齐次线性方程组的求解-Can achieve an arbitrary transformation matrix determinant, find great vector independent of any group, homogeneous non-homogeneous linear equations to solve, etc.
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非线性代数方程的求解的Mathematica的代码，割弦法，可以解决任意的代数方程，代码清晰，方便用户修改代码，使之成为自己的东西。-Non-linear algebraic equations of the Mathematica code, cutting chord method, can solve any algebraic equation, the code clear, user-friendly modify the code, making our own things.
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Toro的一维浅水程序采用waf+hll， 模拟圆形溃坝-Program name: HW-WAFI
File name: hw_wafi.f
Purpose:
To solve the time-dependent non-linear one dimensional shallow water equations with geometric source terms due to cylindrical symmetry by the Weighted Average F
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Toro的slic方法的一维浅水程序，蚕蛹muscl重构-Program name: HW-SLIC
File name: hw_slic.f
Purpose:
To solve the time-dependent non-linear one dimensional shallow water equations by the SLIC method. The method involves a MUSCL reconstruction of the data, time
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Toro的waf加hll求解器的一位非线性浅水程序-Program name: HW-WAFH
File name: hw_wafh.f
Purpose:
To solve the time-dependent one dimensional non-linear shallow water equations by The Weighted Average Flux (WAF) Method using the HLL approximate Riemann solver,
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做浅水计算的都知道TORO什么概念， 这是他老先生的muscl-hancock加h-Program name: HW-MUSH
File name: hw_mush.f
Purpose:
To solve the time-dependent non-linear one dimensional shallow water equations by the MUSCL-Hancock method in conjunction with the HLL approximate
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这是Toro老先生的带干湿界面的精确解，请好好研究-Program name: HW-EXARP
File name: hw_exarp.f
Purpose:
To solve exactly the general Riemann problem for the non-linear one-dimensional shallow water equations for wet and dry bed conditions
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这是Toro的rcm方法求解非线性浅水方程的精确解， 请结合他的两本书看-Program name: HW-RCM
File name: hw_rcm.f
Purpose:
To solve the time-dependent non-linear one dimensional shallow water equations by the Random Choice Method (RCM) on a non-staggered grid, with van der Cor
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the newtown rapson method to solve systems of non-lineaire equations-the newtown rapson method to solve systems of non-lineaire equations
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this code uses newtons method but in the form for function to solve non linear equations. use all the file available in the rar file to run the code.
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this code uses inverse linear interpolation method to solve non linear system to equations.
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单精度COLSYS子程序，用于求解常微分线性、非线性方程组。经过扩容后版本，可以求解1000个最高阶次为4阶的方程。-Single precision COLSYS subroutine for solving ordinary differential linear, non-linear equations. Expansion or later, you can solve the 1000 highest order for the fourth-order equation.
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本例是matlab算法实例，利用matlab实现非线性方程求解。-Using matlab to achieve a non-linear equation solver
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Gauess-Sidel Method for solve non linear equations
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Jacobi Method for solve non linear equations
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LU Method for solve non linear equations
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用c++求解对角元素不为零的双对角线线性方程组-Using c++ to solve linear equations double diagonal non-zero diagonal elements
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