LPR_2011

matlab考试必备，我们学校考试的试卷，有需要的拿去(matlab test necessary, our school examination papers, there is a need for Naqu)

运用分枝定界法求解混合整数规划的matlab程序( Use the branch and bound method for solving mixed integer programming procedures meaning of the of the input parameters: min f* x A* x < = b Aeq* x = beq iter_num_max: maximum number of iterations lb : each variable lower limit UB: upper limit of the each variable X0: Initial ID: 0,1 variable, ID (k) = 1 indicates the variable k is an integer variable, ID (k) = 0, represents the k variable non-integer variable ftemp_up: initial upper bound, unable to find the upper bound of the initial default is infinite IP: initial feasible solution, the initial feasible solution can not be found, the default is the empty output parameters meaning: x: y: optimal solution of the objective function value corresponding to the optimal solution time-consuming iter_num: the number of iterations of the entire branch and bound process Time: Run this program)

自相关法谱估计的程序，这是一种经典的方法，效果真心不错(Autocorrelation spectrum estimation procedure, which is a classic method, the effect is really good)

说明：  分类器程序，基于Matlab，采用最小误差判别准则(Classification program, based on Matlab, minimum error criterion)

有限元 混合边界泊松方程 区域编码 局部编码 节点总体编码 影响元素集和影响节点集 Matlab源程序(Matlab code for Poisson equation with mixed boundary condition)

计算任意两点（给定经纬度）的球面距离，并画出轨迹图。(Calculating any two points (given the latitude and longitude) of the spherical distance, and draw trajectories.)

Its a MATLAB code.....

交换网络中节点的连边,保持网络总度数不变(Exchange randomly node link with total degree numbers unchange. )

1D Ising ising1(n,m,b,p) n - length of domain, a positive integer m - number of iterations, a positive integer b - coupling parameter / temperature, a positive scalar b = 0 -> Very high temp / low coupling b > 1 -> Very low temp / high coupling( 1D Ising ising1 (n, m, b, p) n- length of domain, a positive integer m- number of iterations, a positive integer b- coupling parameter/temperature, a positive scalar b = 0-> Very high temp/low coupling b> 1-> Very low temp/high coupling)

bessel函数求根，求解bessel函数的前20个根(root of bessel)