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基于matlab的图形图象加密算法，对图形图象进行行列变换，达到对图象进行加密的功能。(Matlab-based graphical image encryption algorithm, to transform the ranks of graphics images to be encrypted on the image function.)

das filter: baswed on research by das in filtering

dudu and hart chapter 2 excersise

Binary Collision Aproximation test program

拓扑优化程序，添加两种新的Heaviside敏度过滤方法。(Topology optimization program, adding two new Heaviside sensitivity filters.)

摄像机标定的matlab工具箱，里面有关于单个摄像机标定和立体摄像机标定的matalab程序，网上有专门的文档说明。(Camera calibration of matlab toolbox, and there are about a single camera calibration and stereo camera calibration of matalab program, online have special documented.)

检测从键盘输入字符。用到了fiugre的 currentcharacter 属性，figure还有一个 currentkey 属性。这两个属性都能检测键盘输入，不过还是有不小区别，可以试一下。(Detection input from the keyboard characters. Use of the fiugre' s ' currentcharacter' property, figure there is a ' currentkey' property. These two properties can be detected keyboard input, but there are still no small difference, you can try.)

雷达仿真的MATLAB代码，提供了大量仿真实例，非常实用！(MATLAB code for radar simulation, and provides a large number of simulation examples, very useful!)

说明：  一个BP神经网络的matlab程序，利用BP神经网络实现预测功能。可以编制相关的预测程序参考。(A BP neural network matlab procedures, take advantage of BP neural network function prediction. Able to prepare the relevant reference prediction procedures.)

说明：  matlab在当今功率谱仿真的作用,包括经典功率谱估计和现代的(matlab simulation in today' s role of power spectrum, including classical and modern power spectrum estimation of)