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这是一个用matlab写的hash函数，相信对用matlab做实验仿真的同学有所帮助(This is a hash function written in matlab, I believe that using matlab simulation experiments help students)

北京理工大学王菲教授讲述的大学物理及力学和热学的内容(Beijing Institute of Technology Professor Wang Fei told a university physics and mechanical and thermal content of)

说明：  该压缩包为经验模态分解包系列，包括：EMD-master、EEMD-Project-master和onlineEMD-master，希望对大家有帮助~(The compression package is an empirical mode decomposition package series, including: emd-master, eemd-project-master, and onlineemd-master, and it is expected to help YOU)

The MATLAB code which encrypt data based on AES technique.

These are digital modulation source codes.

鸢尾花卉数据集，利用主成分分析方法进行降维(Iris data , using principal component analysis, dimensionality reduction)

DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求： (1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。 (DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.)

Graph Cut algorithm implementation. Includes MATLAB compiled codes.

Jon Bentley的《编程珠玑》 本书针对程序设计人员探讨了一系列的实际问题，这些问题是对现实中常见问题的归纳总结。作者虽然没有给出解决这些问题的具体代码，但始终非常富有洞察力和创造力地围绕着这些折磨程序员的实际问题展开讨论，从而引导读者理解问题并学会解决问题的技能，这些都是程序员实际编程生涯中的基本技能。为此，本书给出了一些精心设计的有趣而且颇具指导意义的程序，这些程序能够为那些复杂的编程问题提供清晰而且完备的解决思路，书中还充满了对实用程序设计技巧及基本设计原则的清晰而睿智的描述。 ()

The 16x2 LCD Display requires a specific startup sequence // to initialize itself. This sequence (1) clears the display, // (2) moves the cursor to home, (3) resets the function code // (4) turns the display on, and (5) sets the entry mode