二维弹性边界元程序

工程问题中常用微分方程的形式建立数学模型，所以微分方程求解很有意义。本程序用Euler、改进Euler和经典公式对这类方程进行求解-Engineering problems commonly used in the form of differential equations to establish the mathematical model, it makes sense for solving differential equations. This procedure used Euler, improved Euler and the classical formula of such equations to solve

二进制到bcd转换

把1到n的数放在一个环里,使相邻的2个数和是质数.用递归做-n to put a few on a loop, so that the two neighboring and the number is prime. Using recursive do

用初等相似变换将实矩阵约化为上H阵，即Hessen berg矩阵-Using elementary similarity transformation will be about real matrix H into the matrix, that is, Hessen berg matrix

随机数据的生产 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 -randome data 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

二维稳态导热问题。设材料物性均为常数，均质无内热源。已知它的左边界是温度为T2的等温边界，其他三个边界均为温度为T1的等温边界。导热区域为边长L的正方形。-two-dimensional steady-state heat conduction problems. Based material properties are constant, no heterogeneity within the heat source. It is known to have a threefold T2 is the temperature of the isothermal boundary, the other three border are temperature T1 isothermal boundary. Regional conduction length L of the square.

BDF法解分数阶微分方程-BDF method of fractional differential equations

正则表达式处理，查找，匹配，资源非常好，要的赶紧下载。-regular expressions

蚁群算法中有关算法参数的最优选择对蚁群算法的具体参数的选择，达到快的收敛速度和好的仿真效果-Ant colony algorithm parameters relating to the optimal algorithm of ant colony algorithm to choose the specific choice of parameters to achieve faster convergence speed and a good simulation of the effect of

应用背景 早期成果转现在电子表格，各文本数据转换 关键技术电子表格对像的创建，打开，形成电子表格文件