fdtd_1d

本代码使用matlab工具实现了一幅图片的位面图提取，且实现了在某个位面上加密信息、恢复信息的功能。并给出三幅图片的运行结果展示。(This code uses the matlab tool to achieve a picture of the bit plane map extraction, and the realization of the encrypted information in a bit plane, the function recovery information. And gives the results of running three pictures show.)

仿真电容充电过程，用matlab语言实现(Capacitor charging process simulation using matlab language implementation)

精通matlab6.5 (北航 张志涌),绝对的好书(Proficient matlab6.5 (BUAA Zhang Yong), the absolute good)

Dynamic Range Separate HE

这是很好用的simulink教程，方便大家学习(This is a good use of simulink tutorials to facilitate learning)

基于主分量分析的图像融合算法实现，matlab实现，直接输入两幅图像即可(PCA-based image fusion algorithm, matlab implementation, two images can be directly)

产生几种典型的电能质量扰动信号源及其该信号源的ST变换(Produced several typical power quality disturbance source and the transformation of the source ST)

矩阵与线性代数方程组中 线性方程的数值解 矩阵分解 矩阵求逆 (Matrices and linear algebraic equations in the numerical solution of linear equations matrix inverse matrix decomposition)

Fixed 7/17/93 to use inverse-hessian instead of hessian itself in bfgs

单自由度系统对初始条件和简谐激励相应 由单自由度的运动方程和初始条件得到二阶非齐次常微分方程，它的解有对应的齐次方程的通解和非齐次方程的特接构成。(Single degree of freedom system to initial conditions and the corresponding harmonic excitation Special general solution of the equations of motion and initial conditions by a single degree of freedom to get the second order non-homogeneous ordinary differential equations, its solution has a corresponding homogeneous equation and non-homogeneous equation then constituted.)