simplecalculator

fortran90程序，运用Runge-Kutta法数值求解常微分方程的程序，非常适用，包括源代码、一个算例和输出程序(fortran90 procedures, the use of Runge-Kutta method for numerical solution of ordinary differential equations of the process, is very applicable, including source code, a numerical example and output procedures)

calculate maximum volume of cuboid given conditions.. a+b+c<s ab+bc+ca<d where s and d are constants..

分支界限费用矩阵的说明文档，非常实用,建议下载哦(Branch line cost matrix documentation, very practical, it is recommended to download Oh)

用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述,实现了图像的加水印，去噪，加噪声等功能，包括最小二乘法、SVM、神经网络、1_k近邻法。( Monte Carlo simulation method of calculating the American option price and basic description, Realize image watermarking, de-noising, plus noise and other functions, Including the least squares method, the SVM, neural networks, 1 _k neighbor method.)

说明：  基于M估计的迭代最小二乘算法，其中估计量有Huber,Andrews,Hampel,Ramsay等。(M is estimated based on the iterative least-squares algorithm, which estimates there are Huber, Andrews, Hampel, Ramsay and so on.)

一个可以计算二维散射问题的矩量法程序(a calculation of the two-dimensional scattering Moment Method procedures!)

清华大学研究生精品课程《钢筋混凝土有限元》教学程序 随动双线性硬化本构模型 (Tsinghua University Graduate Courses " reinforced concrete finite element" teaching program follower bilinear hardening constitutive model)

混沌的判断指标Lyapunov指数计算,与理论分析结果相比，可实现对二维数据的聚类。( Chaos indicator for Lyapunov index calculation, Compared with the results of theoretical analysis, Can realize the two-dimensional data clustering.)

说明：  用刷选法求出100之内的素数。并输出数有多少个。(100 prime number is calculated by the method of selection. And the output count how many.)

一篇小论文，转子动力学方面多耦合结构研究，是一篇值得研究的论文，题目为椭圆轴承-转子系统的稳定性与分岔。(A small paper, the dynamics of multi-rotor coupling structure, is a worthy research paper, entitled elliptical bearing- Rotor System Stability and bifurcation.)