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新手初次学习windows程序时必看的一部参考书籍，很有帮助的(Novice learner windows program a must-see one reference book, very helpful)

一个关于降压BUCK电路的模型建立，很好很强大(BUCK a buck on the modeling circuit, a very powerful)

梯度下降法是最早最简单，也是最为常用的最优化方法。梯度下降法实现简单，当目标函数是凸函数时，梯度下降法的解是全局解。一般情况下，其解不保证是全局最优解，梯度下降法的速度也未必是最快的。梯度下降法的优化思想是用当前位置负梯度方向作为搜索方向，因为该方向为当前位置的最快下降方向，所以也被称为是”最速下降法“。最速下降法越接近目标值，步长越小，前进越慢。(The gradient descent method is the earliest and most simple and most commonly used optimization method. The gradient descent method is simple to realize. When the objective function is a convex function, the solution of the gradient descent method is a global solution. In general, the solution is not guaranteed to be the global optimal solution, and the gradient descent method is not necessarily the fastest. The optimization idea of gradient descent method is to use the current position negative gradient direction as the search direction, because the direction is the fastest descending direction of the current position, so it is also called the steepest descent method. The faster the slowest descent approach is closer to the target, the smaller the step, the slower the progress.)

matlab中多种三维图形的自动生成程序源码(matlab automatically generate a variety of three-dimensional graphics program source code)

Source code svd in matlab

利用有限差分算法实现动力学方程的求解单个球体在环形容器中运动分析(Finite difference algorithm for solving the dynamic equations in a single sphere in the circular movement of the container)

英文版本的关于反馈fxlms算法在主动降噪中的使用，很不错的一个pdf(Feedback fxlms English version of the algorithm on the use of active noise reduction, very good one pdf)

此matlab函数可以在ECEF和ECI坐标之中转转换地点和速率信息。 ，经测试可直接使用。 (This Matlab function can be transferred into the ECEF and ECI coordinate conversion location and rate information. Has been tested and can be used directly.)

QAM PSK 信号的调制星座图代码,实现调制信号的星座图显示和比较(the code of QAM&PSK Signal modulation constellation diagram )

会员管理软件会员管理软件会员管理软件会员管理软件会员管理软件(manager program 1234567893)