two-dimensional-turbulent-fluid-

％ 奇异值分解 (sigular value decomposition,SVD) 是另一种正交矩阵分解法；SVD是最可靠的分解法， ％ 但是它比QR 分解法要花上近十倍的计算时间。[U,S,V]=svd(A)，其中U和V代表二个相互正交矩阵， ％ 而S代表一对角矩阵。 和QR分解法相同者， 原矩阵A不必为正方矩阵。 ％ 使用SVD分解法的用途是解最小平方误差法和数据压缩。用svd分解法解线性方程组，在Quke2中就用这个来计算图形信息，性能相当的好。在计算线性方程组时，一些不能分解的矩阵或者严重病态矩阵的线性方程都能很好的得到解( Singular value decomposition (sigular value decomposition, SVD) is another orthogonal matrix decomposition method SVD decomposition is the most reliable method, but it takes more than QR decomposition near ten times the computing time. [U, S, V] = svd (A), in which U and V on behalf of two mutually orthogonal matrix, and the S on behalf of a diagonal matrix. And QR decomposition are the same, the original matrix A is no need for the square matrix. The use of SVD decomposition method are used as a solution of least squares error method and data compression. Using SVD decomposition solution of linear equations, in Quke2 on to use this information to calculate the graphics performance quite good. In the calculation of linear equations, some indecomposable matrix or serious pathological matrix of linear equations can be a very good solution)

轨迹跟踪卡尔曼滤波建立在线性代数和隐马尔可夫模型(hidden Markovmodel)上(The trajectory tracking Calman filter is based on linear algebra and hidden Markov models (hidden, Markovmodel))

测绘程序，计算测边网各点坐标的评查程序，值得借鉴(Mapping program to calculate the coordinates of each point measured the side-netting of assessment investigative procedures, worth learning)

考普森教授在这本书中，使用经典的分析方法，给出了严谨的一阶和二阶线性偏微分方程理论方面的知识。(in this book， professor copson gives a rigorous account of the theory of partial differential equations of the first order and of linear partial differential equations of the second order， using the methods of classical analysis.)

Visual C++6.0 实现的多功能计算器(Visual C++6.0 achieve the multi-function calculator)

matlab编写的流体计算和传热程序(很不错的哦)(matlab prepared and heat transfer fluid calculation procedures)

对于网格上每个点求取法向量的方法，程序实现的比较好(Compute normal vectors of 2.5D triangulation)

这是SIR微分方程模型对初值问题的求解和作图(This is the SIR model differential equations to solve the problem of initial value and mapping)

说明：  利用Abaqus子程序UAMP实现PID控制。(PID control is implemented using the Abaqus subroutine UAMP.)

说明：  用Fortran编程求解简单的一元二次方程案例(Solving quadratic equation of one variable)