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固体力学的大作业，有限元法计算阶段梁，包括了计算单元应力。(Finite Element Method matlab program, an example of 1D step beam element. Including calculation of elemental stress.)

改变声音信号采样频率。应分别考虑由低到高和由高到低，最好包括声音采集和回放等功能。(To change the audio signal sampling frequency. Should be considered separately from low to high and high to low, preferably including audio capture and playback functions.)

说明：  LMS算法的MATlab仿真分析，结果表明LMS算法有较好的噪声消除效果！(LMS algorithm MATlab simulation results show that the LMS algorithm has better noise reduction effect!)

该程序可以实现信号的分形计算，从而求解出所求信号的分形函数，在信号非线性研究中有很重要的作用。(The program can calculate the fractal signal, thus solving the request signals a fractal function, the study of nonlinear signal has a very important role.)

Calculate geodesic path

说明：  一个小的matlab编程来实现主成分分析(A small matlab program to achieve the principal component analysis)

Import form iges to matlab and autocad

PCM（脉冲编码调制，包括A律和U律压缩等功能的实现）(PCM (pulse code modulation, including legal and U A legal functions of the compression achieved))

这是一个最基本的OFDM系统仿真，可以与OFDM系统框图对照理解(This is a basic OFDM system simulation, OFDM system diagram can understand and control)

matlab实现huffman编码 1. norm2huff.m (encoder function) 2. huff2norm.m (decoder function) 3. frequency.m (private function) 4. huffcodes2bin.m (binary rapresentation of huffman codes) 5. huffman_bench1.m (benchmark) 6. huffman_demo1.m (demo file) 7. huffman_demo2.m (demo file) 8. huffman_test1.m (test file) 9. huffman_test2.m (test file) 10. huffman_docs.zip (documentation) 11. Disclamer.txt (this is the disclamer)(huffman coding matlab realize 1. norm2huff.m (encoder function) 2. huff2norm.m (decoder function) 3. frequency.m (private function) 4. huffcodes2bin.m (binary rapresentation of huffman codes) 5. huffman_bench1.m (benchmark ) 6. huffman_demo1.m (demo file) 7. huffman_demo2.m (demo file) 8. huffman_test1.m (test file) 9. huffman_test2.m (test file) 10. huffman_docs.zip (documentation) 11. Disclamer.txt (this is the disclamer))