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altera cycloneII fpga 的pcb封装图，protel格式的，下载后加载，省得自己画了。-altera cycloneII fpga the pcb package plans, protel format, download load clinics to save their own a painting.

performance abalysis of generalized spatial modulation

说明：  齿轮动力学分析，计算吸引子，庞加莱截面图，返回映射吸引子等(Gear dynamic analysis, calculation of dynamic load factor, displacement acceleration and so on)

说明：  结构在外部激励下受迫振动，使用Newmark方法求解结构振动有限元方程。(Solving the finite element equation of structural vibration)

鼠标单击图片可以移动图片，移到目标位置后再次单击，图片移动就成功了，很不错的一个鼠标移动图片的网页特效。(Mouse click the picture can move the picture, move to the target position and click again, the picture moved successfully, a good mouse to move the picture page effect.)

说明：  小游戏小项目练手源码，图片素材，适合练手。。。(Small game small project training source code, picture material, suitable for hand training....)

基于逆波兰法的计算器程序，该计算器支持小数输入和正负数输入，支持四则运算以及指数运算，也支持括号的使用。(Reverse Polish law based calculator program, the calculator supports input and negative decimal number input, support four operations and index calculation, and also supports the use of parentheses.)

说明：  新手上传matlab程序，希望可以和大家互相交流学习(I hope to have a chance to learn from others)

说明：  对非线性微分方程画相图以及求特征值和李雅普诺夫指数。以简单的非线性微分方程为例，程序中的微分方程可自行修改(Drawing phase diagrams and calculating eigenvalues for Nonlinear Differential Equations)

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