Example code for some copula functions

this file is a matlab program. File name is 2D fast fourier transform.

The latest Matlab releases (starting with R2007a) include support for multiple cores. However, Matlab will only take advantage of multiple cores in evaluating certain computations like an FFT or a FIR filtering operation. Matlab will never be able to determine if, for example, consecutive function calls in a for-loop are independent of each other.

用于非线性系统分岔分析的Matlab工具箱(Bifurcation analysis of nonlinear systems for Matlab toolbox)

无线通讯系统的matlab仿真程序；主要包括同步，均衡，信道估计，调制解调(Wireless communications systems matlab simulation program mainly include synchronization, balance, channel estimation, modulation and demodulation)

substitution cipher is the method of encoding in which unit of plain text are replaced by cipher text. Monoalphabetic cipher uses a fixed message over entire message.A monoalphabetic cipher uses fixed substitution over the entire message.The monoalphabetic substitution takes a letter of an alphabet and substitutes it with another letter, this way a ciphertext is generated. The way of converting is fixed. A character of the plaintext will be replaced by the same ciphertext character, during the entire ciphertext. There is no additional key. The only way of security is to keep the substitution-table secret. A popular example for the monoalphabetic substitution is the caesar cipher.

说明：  求解大规模对称矩阵的CG算法，及预处理PCG使用Matlab语言，可以解1000阶以上的矩阵，以病态矩阵hilbert为例(Solving large-scale symmetric matrix of the CG algorithm, and pretreatment of PCG using Matlab language, you can order more than 1,000 solution matrix, as an example to pathological matrix hilbert)

driver implementation for hardware watchdog.

说明：  GA-BP神经网络，包含数据和代码，绝对好用，亲测有效(GA-BP neural network, including data and code)

MATLAB程序设计，M文件，程序控制结构，函数文件，程序举例，程序调试(MATLAB programming, M files, program control structures, functions, files, programs, for example, debugging)

说明：  可以实现2ask的调制，在信噪比SNR为0，10，20。如有需要者可下载。(it is a good matlab program! it can produce a 2ask signal at SNR=0,10,20.)