powrflow

数字滤波器的MATLLAB仿真源代码，下载即可使用，具有很好的学习参考价值。(Digital filter MATLLAB simulation source code, download to use with a good learning reference value.)

libc 详细说明了C库里代码的实现过程，里边有详细的注释(detailed description of the C library libc code implementation process, detailed notes inside)

active shunt filter open loop

伯努利方程，试验过的，适合初学者学习，非常有用(Bernoulli equation, tested, is suitable for beginners to learn, and very useful)

2d fractional cosine transform

matlab下对图像进行fft变换，平滑，锐化，中心化傅立叶正变换得到大正方形，小正方形，斜正方形。对其频谱进行中心化处理。图像的平滑和锐化，利用拉普拉斯算子。(Matlab right image fft transform, smoothing, sharpening, is the center of the Fourier transform large square, small square, ramp square. Its spectrum treatment center. Image sharpening and smoothing, using Laplace operator.)

matlab for compression

添加wav文件或者录音 实现频谱分析 是个MATLAB文件(Add wav files or recording to achieve spectral analysis)

the graph of x=0.2*(1.2^n)

some code use for dsb matlabe