cost

thirty pulse converting system.enjoy on it

数学建模中用到的各种算法，基本都在里面了，然后还有一些软件的教程，如MATLAB,LINGO(Various algorithms used in the mathematical modeling, the basic inside, and then there are some tutorials of software, such as MATLAB, LINGO)

通过matlab实现数据的时域图D代码呵呵呵呵(When implementing data via matlab domain map)

梯度下降法是一個一階最佳化算法，通常也稱為最速下降法。 要使用梯度下降法找到一個函數的局部極小值，必須向函數上當前點對應梯度（或者是近似梯度）的反方向的規定步長距離點進行疊代搜索。如果相反地向梯度正方向疊代進行搜索，則會接近函數的局部極大值點；這個過程則被稱為梯度上升法。(The gradient descent method is a first-order optimization algorithm, also commonly referred to as the steepest descent method. To find the local minimum of a function using the gradient descent method, an iterative search must be performed to the specified step distance point in the opposite direction of the gradient (or approximate gradient) of the current point on the function. If the search is reversed in the opposite direction to the positive direction of the gradient, it will approach the local maximum point of the function; this process is called the gradient ascent method.)

说明：  详细的偏微分方程的matlab求解步骤与程序说明。(detailed PDE soler ,using PDE tools and codes.)

《MATLAB图像处理宝典》(秦襄培等编著)源代码，北京电子工业出版社2011版(MATLAB Image Processing Collection " (Qin Xiang Pei, eds) source code, Beijing Electronics Industry Press, 2011)

matlab数据拟合工具箱功能介绍，包含100多个回归拟合函数(matlab curve-fitting-toolbox)

Sigmoid的参数求解matlab源代码，可以嵌入到各种机器学习问题中使用(Sigmoid parameters Solving Matlab source code, can be embedded into various machines used to study the problem)

实现基于BPSK的直接扩频信号调制，并显示出各阶段信号波形。(Direct-based BPSK modulated spread spectrum signal, and shows the signal waveform of each phase.)

bfsk系统仿真 bfsk系统仿真 bfsk系统仿真(bfsk System Simulation bfsk System Simulation bfsk System Simulation)