第三次作业

低通滤波，基于切比雪夫滤波器，可根据滤波要求调整截止频率(Low pass filter, based on Chebyshev filter, the cut-off frequency can be adjusted according to the filter requirements)

非线性拟合各类方法总结及实例，非常详细，适合初学者学习。(nonlinear fittingNonlinear fitting method summary and examples, very detailed, suitable for beginners to learn.)

MPPT控制器的全称“最大功率点跟踪”（Maximum Power Point Tracking）太阳能控制器，是传统太阳能充放电控制器的升级换代产品。所谓最大功率点跟踪，即是指控制器能够实时侦测太阳能板的发电电压，并追踪最高电压电流值(VI)，使系统以最高的效率对蓄电池充电。下面我们用一种机械模拟对比的方式来向大家解释MPPT太阳能控制器的基本原理。(The full name of MPPT controller is "Maximum Power Point Tracking" solar controller, which is an upgrade product of the traditional solar charge and discharge controller. The so-called maximum power point tracking (MPPT) means that the controller can detect the generation voltage of solar panels in real time, and track the maximum voltage and current (VI), so that the system can charge the battery with the highest efficiency. Next, we will explain the basic principle of MPPT solar controller in a way of mechanical simulation and comparison.)

该算法是蝙蝠和BP网络结合的算法，用于优化BP算法(The algorithm is a combination of bat and BP networks, which is used to optimize BP algorithms)

c++, 关于重载2-c, on heavy 2

Minigof 迷你高尔夫游戏源代码(手机版)-Minigof mini-golf game source code (mobile version)

I will send code for you. This code use add 2 number a & b

该书是一本较好的R语言编程书籍，从认识到实战，手把手教你如何使用R语言进行数据分析、挖掘、画图等等。(This book is a good R language programming book, from understanding to actual combat, teach you how to use R language data analysis, mining, drawing and so on.)

该资料为一款1KW逆变器设计原理图，照着此图可以做出来(The data is a 1KW inverter design schematic diagram, according to this diagram can be done.)

citygml详细教程-------很好的学习资料(citygml good detailed tutorial learning materials-------)