FIX UI

Sine Cosine tg, atan, ... formulas

HTML5 canvas光束光线爆炸效果，灯花绽放特效。(HTML5 canvas ghost ghost animation code, ghost ghost flying code, horror background animation.)

该程序是基于STM32外部触发计数器的测频程序代码，可以测量的范围是0-100MHZ误差1 不到。(The program is based on the STM32 external trigger counter frequency measurement program code, can be measured in the range of 0-100MHZ error of less than 1 .)

学EDA 的时候做的，全是自己设计的，后面还有很多好东西，愿大家分享，希望能给大家带来一定的帮助！-EDA school time to do all of their own design and there are a lot of good things, willing to share the hope that we can bring some help!

在一个有向无环图中求最长路径，利用了拓扑排序(Finding the longest path in a directed acyclic graph by using topological ordering)

说明：  队列、链表等基础数据结构头文件，cc++仅供学习(dataStructure head file ,just for learning)

可以实现激光谐振腔的自再现；有利于了解激光腔的原理-Laser resonator can be achieved self-reproduction is conducive to understanding the principle of laser cavity

NFC smart card reader driver example

uml课程设计的题目。软件学院的。、 内容就是如题目的样子了……、-uml curriculum design topic. Software Institute. , As if the subject is the look of

捷联惯导的C程序实现，四元数进行姿态更新，MATLAB进行图像处理，包含原始数据。(SINS of the C program implementation, quaternion for attitude update, MATLAB for image processing, including raw data.)