quasi_newton

说明：  雷利对流，用格子波尔兹曼方法以Z.Guo程序为基准，得出的近似值用于估计浮动过程，希望有人能够用得到。( Rayleigh Benard Convection, using a LB method,based on [Z.Guo, ]. Boussinesq approximation is used for the buoyancy term.)

说明：  三体问题粒子轨迹图。设正电荷在（-1，0）（1，0）处，电子初始位置根据设定。(three body problem. Positive particle is placed on （-1，0）（1，0）. This program will give the trace of the electron under selected initial position.)

牛顿迭代法函数，有6个参数，可缺省后3个参数；动态画出迭代过程(Newton iteration function, there are 6 parameters, 3 parameters after the default dynamic iterative process to draw)

伪随机序列---m序列（function)( pseudo-random sequence--- M sequence )

ultrasonic image incl. correlation

通过matlab模拟仿真光反馈半导体激光器的非线性动态输出特性，主要包括单周期振荡，倍周期振荡，四倍周期振荡和混沌振荡等。(Research program by matlab optical feedback semiconductor laser output characteristics of nonlinear dynamics, there are single-cycle oscillation, the oscillation cycle times, four times the oscillation cycle oscillations and chaos.)

设计滤波器的各种窗函数的源代码，非常有用，和大家分享，快来下载学习哦！！(A variety of window functions designed to filter the source code, very useful to share, come to learn oh download！！)

Compute median frequency of a signal

A signal-dependent rank ordered mean (SD-ROM) filter-a new approach for removal of impulses from highly corrupted images

In this program, a 20 micron x 8 micron platform is taken with closely placed slits emitting light at the upper border of domain which extend only in the third dimension perpendicular to the plane of simulation and which are projected as just point sources in the simulation domain. The region surrounding the waveguide are filled with air of refractive index, n=1.