C语言学生信息管理

最小二乘法拟合圆vc实现，最小二乘法(least squares analysis)是一种 数学 优化 技术，它通过 最小化 误差 的平方和找到一组数据的最佳 函数 匹配。 最小二乘法是用最简的方法求得一些绝对不可知的真值，而令误差平方之和为最小。(least squares fitting round vc realized, least-squares method (least squares analysis) is a mathematical optimization techniques, It error by minimizing the square and a group of data to find the best matching function. Least-squares method is the most simple method to derive absolutely true value unknown, and so the sum of squared errors to the minimum.)

基于STC89C52单片机，可以测量RLC的高精度的RLC测量仪的系统方案，包括原理图和PCB布线图(Based STC89C52 microcontroller, can be measured with high precision RLC RLC meter system solutions, including schematics and PCB layout)

几款3D游戏源码 OpenGL的组合图形 特殊的平面_树 MD2动画模型 射击、爆炸 碰撞检测 游戏进度保存 场景编辑(Game source 3D models a combination of OpenGL graphics plane _ a special MD2 animation model tree shooting, collision detection explosion scenes to preserve the progress of Games Edit)

vitetbi 约束长度为7，可以直接运行(vitetbi constraint length 7 can be run directly)

rela 时间、 转速计算 + 分类的类型以及移动车辆数目的汽车运动汽车的检测

这是一个简单的数据生成器，可以生成0到1之间的n维数据(This is a simple data generator can generate 0 to 1 between the n-dimensional data)

在过程控制中，按偏差的比例（P）、积分（I）和微分（D）进行控制的PID控制器（亦称PID调节器）是应用最为广泛的一种自动控制器。它具有原理简单，易于实现，适用面广，控制参数相互独立，参数的选定比较简单等优点；而且在理论上可以证明，对于过程控制的典型对象──“一阶滞后+纯滞后”与“二阶滞后+纯滞后”的控制对象，PID控制器是一种最优控制。PID调节规律是连续系统动态品质校正的一种有效方法，它的参数整定方式简便，结构改变灵活（PI、PD、…）(In process control, the PID controller (also called PID regulator) controlled by deviation ratio (P), integral (I) and differential (D) is one of the most widely used automatic controllers. It has the advantages of simple principle, easy realization, wide application, independent control parameters, simple parameter selection, etc. It can also be proved theoretically that PID controller is an optimal control for the typical object of process control - "first-order lag + pure lag" and "second-order lag + pure lag". System. The regulation rule of PID is an effective method for dynamic quality correction of continuous system. Its parameter setting method is simple and its structure is flexible (PI, PD,...).)

对图像进行哈夫曼编码并且能够解码，可以在命令行中选择图像地址(Huffman encoding and decoding of images)

矩阵按键，数码管显示状态及选手，蜂鸣器提示音(Matrix keys, digital display status and player, buzzer prompt sound)

股票控件activx源代码,实现了K线图等技术指标(Stock control ActivX source code, implementation of the K line graph, etc. Specifications)