matlab_learning

直接型到级联型的形式转换 ％ [b0,B,A]=dir2cas(b,a) ％b 为直接型的分子多项式系数 ％a 为直接型的分母多项式系数 ％b0为增益系数 ％B 为包含各bk的K乘3维实系数矩阵 ％A 为包含各ak的K乘3维实系数矩阵 ％(directly to the cascade-type conversion in the form of%% [belts, B, A] = dir2cas (b, a)% b-to direct the molecular polynomial coefficients% for a direct-denominator polynomial coefficients% of the gain coefficient belts% B To contain the bk K by the three-dimensional real coefficient matrix% A to include all ak K by the three-dimensional real coefficient matrix%)

研究光子晶体的系统有参考价值的源程序，对科研有帮助,F90。(PC important)

说明：  计算单模光纤与LED 的直接耦合效率，设计光纤透镜参数(The direct coupling efficiency of single mode fiber and LED is calculated and the parameters of optical fiber lens are designed)

Simulick block with embedded matlab func. for FIR filter.

运用遗传算法进行编码，求解汽车发动机悬置系统的固有频率的最大值(The use of genetic algorithm coding, automotive engine mounting system to solve the natural frequency of the maximum)

说明：  用MATlab神经网络来做预测的例子，有用的人可以下来看看(Neural network to do prediction with MATlab example, useful to see who can down)

滤波器的设计和实现，可以观察程序的结果，来看滤波效果，很好的学习资料(design filter)

a source code to do the compression with low a and low mu

编码格式转换，UTF8， ASIC， BIG5， GBK 相互转化(Encoding format conversion, UTF8, ASIC, BIG5, GBK into each other)

md5 calcul for generating hashes in 128 bits.Please tell if you like it