library_for_lcd_2x16_2x20_4x16_4x20

实现数值分析中单纯形法改进方法的matlab代码，即改进单纯形法算法，能够实现大型稀疏矩阵的迭代，代码分为三分。这是2/3..(Numerical analysis to achieve improved method simplex method matlab code that modified simplex method algorithm, to achieve large sparse matrix iteration, the code is divided into thirds. This is the 2/3 ..)

数值分析中基于Matlab环境下的关于最小二乘的源代码(Numerical analysis environment based on Matlab source code on least-squares)

iir低通滤波器设计实验代码，可以清楚地观察到滤波效果(iir low-pass filter design experimental code, can be clearly observed filter effect)

this is some basic matlab programs.

基于熵的属性离散化方法，参见《一种基于熵的连续属性离散化方法》(An entropy based algorithm for discretization of continuous variables)

OFDM信号在无线通信中会受到多普勒频移的影响，从而影响了OFDM信号的正交性，引起载波间的干扰和OFDM信号符号间的干扰，本代码先形成含有N个二进制码元的信号，而这个信号的前半部分和后半部分的信号是一样的，然后根据把这个信号调制成OFDM信号，最后接收端根据这个OFDM信号估计出多普勒因子(OFDM signal in a wireless communication will be subject to Doppler shift of influence, thus affecting the OFDM signal orthogonality, causing interference and interference between the OFDM signal symbol between carriers, the code first formed comprising N binary symbols signal, and the first and second halves of this signal is the same signal, and then the OFDM signal according to the estimated Doppler factor modulates the signal to the OFDM signal received, the last side)

说明：  某厂向用户提供发动机，合同规定，第一、二、三季度末分别交货40台、60台、80台．每季度的生产费用为 （元），其中x是该季生产的台数．若交货后有剩余，可用于下季度交货，但需支付存储费，每台每季度c元．已知工厂每季度最大生产能力为100台，第一季度开始时无存货，设a=50、b=0.2、c=4，问工厂应如何安排生产计划，才能既满足合同又使总费用最低．讨论a、b、c变化对计划的影响，并作出合理的解释(To provide users with a factory engine, contract, first, second and third quarter respectively, delivered at the end of 40, 60, 80. Quarterly cost of production (million), in which x is the quarter of the number of production. If the remaining after delivery, can be used for delivery next quarter, subject to payment of storage fees, for each element c of each quarter. The largest known plant production capacity of each quarter to 100, the beginning of the first quarter of stock, set up a = 50, b = 0.2, c = 4, asked how to arrange the production of the factory plans to meet the total cost of the contract makes the minimum . Discussion of a, b, c of the impact of change on the plan and make a reasonable explanation)

matlab code fitting weibull distributions MLE

Orthogonal Frequency Division Multiplexing(OFDM) signal simulation(Orthogonal Frequency Division Multiplex ing (OFDM) signal simulation)

The Generalized ESD procedure ( gesd ), tests for up to a prespecified number r of outliers and it is specially recommended when testing for outliers among data coming from a normal distribution.