介绍了时域有限差分法的基本原
理, 推导了二维棋份算法的。表达式, 对吸收边界条件工肠山网加、数值毯定性条件等
进行了说明, 并阐述了基于人们由软件编程的基本方法
Introduced the FDTD method the basic principles were derived algorithm for two-dimensional chess. Expression, work on absorbing boundary conditions net increase of intestinal Hill, numerical blanket qualitative conditions are described and elaborated on it by the basic method of software programming (2010-05-18, PDF, 58KB, 下载13次)
1stOpt 是七维高科有限公司（7D-Soft High Technology Inc.）独立开发，
拥有完全自主知识产权的一套数学优化分析综合工具软件包。在非线性回归，曲线拟合，非线性复杂模型参数估算求解，线性/非线性规划等领域首屈一指；
1stOpt 应用范围
1) 模型自动优化率定
2) 参数估算
3) 任意模型公式线性，非线性拟合，回归
4) 非线性连立方程组求解
5) 任意维函数，隐函数极值求解
6) 隐函数根求解，作图，求极值
7) 线性，非线性及整数规划
8) 组合优化问题
9) 高级计算器
附带指导文件
1stOpt Hi-Tech Co., Ltd. is one of the seven-dimensional (7D-Soft High Technology Inc.) Independently developed, have complete independent intellectual property rights of a set of integrated tools for analysis of mathematical optimization software package. In the non-linear regression, curve fitting, non-linear model parameters to estimate the complexity of solving linear/nonlinear programming in areas such as second to none 1stOpt scope of application 1) model to automatically optimize rate 2) parameter estimation 3) any model of the formula line sexual, non-linear fitting, regression 4) non-linear simultaneous equations to solve even 5) arbitrary-dimensional function, implicit function solving extremum 6) implicit function solving the root, mapping, and extreme value 7) of linear, non-linear and integer programming 8) combinatorial optimization problem 9) high-level guidance document attached calculator (2009-08-24, PDF, 7247KB, 下载289次)