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using fft function and other function that woring with signals, and picture in matlab

矩阵与线性代数方程组中 线性方程的数值解 矩阵分解 矩阵求逆 (Matrices and linear algebraic equations in the numerical solution of linear equations matrix inverse matrix decomposition)

Calendar Data Source Code for Andriod.

【谷速代码】matlab源码程序 MRF变化检测 可以作为参考使用，程序是word版本 ([Valley] matlab source code speed MRF change detection program can use as a reference, the program is a word version)

三次样条插值函数边界条件由实际问题对三次样条插值在端点的状态要求给出.以第1边界条件为例,用节点处二阶导数表示三次样条插值函数,用追赶法求解相关方程组.通过Matlab编制三次样条函数的通用程序,可直接显示各区间段三次样条函数体表达式,计算出已给点插值并显示各区间分段曲线图.(Cubic spline interpolation function from the real problems of boundary conditions cubic spline interpolation is required to give the state of the endpoint. Boundary conditions in the first example, the second derivative with node represents a cubic spline interpolation function, solving equations associated with catch-up method group. preparation of common procedures cubic spline function through Matlab, can directly display each range segment cubic spline function body expression, to the point of interpolation has been calculated and displayed for each sub-interval graphs.)

一个有效的实现k - means+ +聚类多元数据算法。已经证明,这种算法有一个预期值的上界值。此外,k - means + +具有较好的收敛性。(An efficient implementation of the k-means++ algorithm for clustering multivariate data. It has been shown that this algorithm has an upper bound for the expected value of the total intra-cluster distance which is log(k) competitive. Additionally, k-means++ usually converges in far fewer than vanilla k-means.)

说明：  多种群遗传算法的函数优化算法，通过多个种群之间的相互交流，加强遗传算法的寻优能力(The function optimization algorithm of multi population genetic algorithm strengthens the optimization ability of genetic algorithm through the mutual communication of multi population)

小波阈值降噪的例程，可以选择多种原始信号及多种阈值方式。(Wavelet threshold noise reduction routine, you can choose a variety of the original signal and multi-threshold approach.)

对偶单纯型 最优化的一个作业 需要的可以参考下~(Dual simplex)

使用Matlab成功编写了动态演示的机械原理中考虑摩擦力机构力分析动画。 效果还不错，大家雅俗共享。:) 机构力分析 机械原理 考虑摩擦力 作图法(Consider the mechanical principles to use Matlab prepared a dynamic demonstration of the force of friction institutions to analyze the animation. The results were pretty good, we shared refined and popular tastes. :) Institutional force analysis of mechanical principles to consider friction mapping method)