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说明：  matlab 编写的spm软件应用，希望对学习SPM软件的朋友有用。(matlab spm)

利用Matlab编写程序实现简易计算器功能,完成日常计算必备神器(Using Matlab programming to achieve simple calculator functions necessary to complete everyday computing artifacts)

FDTD code for a calculation of Capacitance of a stripline

基于二阶导数的图像边缘检测方法，包括marr算法和laplacian算法(Second derivative-based edge detection methods, including marr algorithms and laplacian algorithm )

Sky lab calculate position of satellite in GNSS systems and calculate elevation and azimuth them and show them.

基于稀疏分解的单个信号盲分离，从多个混合信号中，提取出我们需要的信号(Sparse decomposition based on a single blind signal separation, from the number of mixed-signal, we need to extract the signal)

Chi Square Test for Independence: calculuate the chi square of a vector and the critical value.(Chi Square Test for Independence : calculuate the chi square of a vector and the Kearns Dept.of value.)

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It s about 3d 3D DIPOLE ANTENNA DESIGN.

二次规划师非线性优化中的一种特殊情形，它的目标函数是二次实函数，约束函数都是线性函数。由于二次规划比较简单，便于求解（仅次于线性规划），并且一些非线性优化问题可以转化为求解一些列的二次规划问题，因此二次规划的求解方法较早引起人们的重视，称为求解非线性优化的一个重要途径。二次规划的算法较多，本文仅介绍求解等式约束凸二尺规划的拉格朗日方法以及求解一般约束凸二次规划的有效集方法。(Quadratic nonlinear optimization planners in a special case, its real objective function is a quadratic function, constraint functions are linear functions. Because of quadratic programming is relatively simple and easy to solve (after linear programming), and some non-linear optimization problem can be transformed into solving quadratic programming problems some columns, solving quadratic programming method therefore attracted attention earlier, saying an important way for solving nonlinear optimization. More quadratic programming algorithm, this paper describes only two feet Solving the Equality Constrained Convex Programming effective Lagrangian method and set method for solving general constrained convex quadratic programming.)