nn123922

说明：  若锗中含有一定数量的杂质元素Sb，试根据要求分析杂质浓度与电离度以及电离温度之间的关系： （1）当Sb浓度分别为 和 时，计算杂质99％，90％和50％电离时的温度各为多少？ （2）根据一定杂质类型和杂质浓度，画出电离度和温度的关系图线，并确定半导体处于强电离区（电离度>90％）的温度范围。 设计要求：（1）具有友好输入输出界面； （2）调整输入数据，得出相应结果，并进行分析。 (If the germanium containing a certain number of impurity elements Sb, test analysis in accordance with the requirements of impurity concentration and ionization degree, as well as the relationship between the ionization temperature: (1) When the Sb concentration and time were calculated 99 percent of impurities, 90 and 50 ionization When the temperature of each number? (2) according to certain types of impurities and impurity concentration, ionization degree and temperature to draw the relationship between the graph lines, and to determine the semiconductor in a strong ionization zone (ionization degree)

contourlet 变换的toolbox,方便大家使用(contourlet transform toolbox, to facilitate people to use)

matlab中绘制海洋地图以及海岸线的地图的程序(map in the ocean for matlab)

Matlab code for The Labor-Supply Elasticity and Borrowing Constraints: Why Estimates are Biased 1

说明：  短时傅里叶分析，时频分析等，m文件集合，tftb(Short time Fourier analysis, time-frequency analysis)

garchfit函数的用法，用于ARMA参数的拟合，给出参数的极大似然估计值。(The function of the usage of garchfit for ARMA parameter fitting, given the parameters of a great likelihood estimate.)

实现全搜索，三步法，四步法，钻石法等等等等(Realize the full search, three-step method, four footwork, diamond method and so on and so on)

a software code for computing selected eigenvalues of large sparse symmetric matrices

说明：  使用蛙跳算法来解决一个工厂流程问题的事例(Frog hopping algorithm solves factory process problems)

说明：  学习matlab的简单 30程序 如追赶法求解三对角方程(Chase method Tridiagonal)