assignment_4_q4

這是我自己練習用的程式碼用於matlab(This is my own practice to use the code for matlab)

说明：  求解大规模无约束最小化问题，使用信赖域算法，其中信赖域子问题使用截断共轭梯度法(The trust region algorithm is used to solve the large-scale unconstrained minimization problem, in which the truncated conjugate gradient method is used for the trust region subproblem)

by matlab draw the julia set and mandelbrot set.

本文件是用matlab编写的俄罗斯方块，还挺好玩的哦(This document is written using matlab Tetris kinda fun!)

This is a source code for image processing. It is using fresnal algorithm and diffraction forulas to creat holograms.

说明：  用粒子群算法解决背包问题，能得到比较有效的结果(Particle swarm algorithm to solve knapsack problem, the results can be more effective)

平凹腔激光模式计算程序，利用边界元方法计算，matlab编程！(concave cavity laser mode procedures, the use of the boundary element method, the Matlab programming!)

清华大学张旭东老师《现代信号处理》课第二次大作业代码。高效正确地实现LMS算法。(This is an efficient and correct implementation of the LMS algorithm .This code is especially for the project of modern signal processing ,which is tought by Zhang Xudong in Tsinghua University.)

本代码能实现拉格朗日函数拟合，经验证具有很好的插值拟合效果。(This code can achieve the Lagrangian function fitting, interpolation proven with good fitting effect.)

用matlab实现录音和播放功能，并且能实现男女变声功能。(Using matlab to achieve recording and playback functions, and can change the sound of men and women to achieve functional.)