welch

this source code based on steganography and developed in matlab. in steganography we can hide any data like images in another image. this method based on application for madical data

sift算子中高斯金字塔和DOG的生成，只是该算子的最初步骤(sift operator：the generation of Gaussian pyramid and DOG。it is only the first steps)

製作4層樓電梯 可以控制在內部開門關門 外部則是上下按鍵使用(4 floors produced inside the elevator door closing can be controlled externally using the up and down keys)

基于matlab软件的一个无约束优化问题的最速下降算法(Based on matlab software an unconstrained optimization problems steepest descent algorithm)

这是一个复制期权的matlab程序，内部有随机股价模拟，和delta对冲。(this is a program to do delta heging, and stochastic stock prices simulating )

flownewton le thanh binh

自己写的关于方程求根的matlab程序，仅供参考(Roots of equations to write about the matlab program, for reference only)

matlab的基础教程，用于算法开发、数据可视化、数据分析以及数值计算(matlab Essentials for algorithm development, data visualization, data analysis, and numeric computation)

说明：  不同SNR时，AWGN信道下能量检测ROC曲线，横轴为Pf，纵轴为Pd.SNR分别是-5dB、-10dB、-15dB(ROC curve of energy detection)

data security in manet using key generation technique. it encodes & decodes the data to be transmitted