emd+bianjipu

％ 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)

fortran编写的共轭梯度法模块，直接套用，可以直接读矩阵文件(the conjugate gradient method of fortran written modules, ready-made, you can directly read the matrix file)

矩阵的练习 对于掌握数组的 概念很重要。如何快速掌握数组，灵活运用。(The practice of the matrix is ​ ​ very important to grasp the concept of the array. How to quickly grasp the array of flexible use.)

求非线性系统的相平面轨迹、平衡点时，编写采用一步仿真计算状态轨线斜率的函数M文件(Phase plane trajectory of nonlinear systems, the equilibrium point, write step simulation state rail line slope function M)

十四节点潮流计算程序，采用了经典的牛拉法潮流计算方法 配以注释(14 nodes trend calculation procedure, using the classic cattle Rafah flow calculation method together with the comments)

说明：  复杂网络MATLAB工具包和源程序，用于计算复杂网络特性的工具包。(Complex network MATLAB toolkit and source code)

可控源电磁法（CSEM）一维反演程序，利用Occam算法(1d inversion program for CSEM)

汽车油耗计算（C实现）对于家用经济型小轿车来说，统计油耗是经常做的一件事。本题目要求根据汽油单价、每次加油所用钱数，以及该次加的油所跑里程数计算出该车的百公里油耗，并进行保存，根据需要给出统计数据。(Vehicle fuel consumption calculation (C implementation) for the household economy cars, the fuel consumption statistics is often one of the things. The questions asked based on gasoline price, amount of money each fuel used, and the second oil added to calculate the mileage run car 100 km fuel consumption, and save, according to the need to give statistics.)

说明：  levenberg-maquardt最小二乘拟合算法(This program do the levenberg-maquardt LS fit.)

该程序计算薄板振动固有频率，模态，以及受迫振动时域响应(The program calculates the natural frequencies, modes, and time-domain responses of the forced vibration of the thin plate)