ROAM实时动态LOD地形渲染

说明：  关于多旋翼四轴的PID的原理，以及处理的方法。对于做多旋翼无人机开发的很有用。(The principle of the PID of the four axis of the multi rotor and the method of processing. It is very useful for the development of multi rotor UAVs.)

说明：  写给想当程序员的朋友 开发者最好的初学思想 (To those who want to become programmers The best thinking for new developers)

khalil的经典书籍《非线性控制》的习题答案。(khalil s classic book nonlinear control exercise answers.)

Delphi下用Intraweb开发WEB程序应用实战(Developing WEB Application with Intraweb under Delphi)

说明：  多用户检测的PPT 很基本 但很重的一些原理 (POWERPOINT OF MUD)

说明：  电机的弱磁控制，可以当作参考进行学习，包括很多模块(The flux weakening control of the motor can be used as a reference)

说明：  本书作为正式教材和自学用书均非常优秀，作为程序设计者的参考用书亦极为合适，需要的同志，赶快下吧(the book as an official self-learning materials and books are excellent, as a procedural designers reference book is also very suitable to the needs of comrades, where it quickly)

可以多看书，从中学习很知识。这是一个 很快乐的过程，请珍惜这个过程！(You can read more books and learn a lot from them. This is a very happy process, please cherish this process!)

Python学习电子书经典之作，课余学习之用(Python Learning the classic books of e-books and the use of after-school learning)

采用 FSFR 系列飞兆电源开关 (FPS? ) 的半桥 LLC 谐振变换 器的设计(Using the fairchild FSFR series power switch of a half-bridge LLC resonant transformation The design of the device)