Possion-formula

利用matlab的simulink，如代码中所示的图形(Using matlab to simulink, as shown in the graphic code)

说明：  选取文本，通过程序自动选取当先目录下的所有文件(selecting text)

《MATLAB有限元分析与应用》(德国)(P.l.Kattan)卡坦：采用当今在工程和工程教育方面非常流行的数学软件MATLAB,对有限元分析进行数值实现。书中既包含了MATLAB的简单介绍,又详述了有限元方法的系统性处理策略,并提供了大量取自机械工程、土木工程、航空航天工程或材料科学的示例和习题,非常适合相关专业的学生和研究人员使用。《MATLAB有限元分析与应用》特别强调对MATLAB的交互应用,书中的每个示例都以交互的方式求解,有利于读者切实提高有限元的分析和应用能力。以上代码为本书源代码。 ("MATLAB finite element analysis and application" (Germany) (PlKattan) Catan: using today s engineering and engineering education in the popular mathematical software MATLAB, the finite element analysis numerical implementation. The book not only contains a brief introduction to MATLAB, and the finite element method described systematic processing strategy, and provides a large number from the mechanical engineering, civil engineering, aerospace engineering or materials science examples and exercises, ideal for relevant professional Students and researchers. "MATLAB finite element analysis and application of"special emphasis on the MATLAB interactive applications, each of the examples in the book the way to solve the interaction is conducive to the reader effectively improve the finite element analysis and application. Source code for the book above. )

利用Crank-Nicholson算法的U型地埋管换热器出口水温动态模拟计算程序(The dynamic simulation method of U-tube ground heat exchanger(Crank-Nicholson method))

越来越多的学科已发展到不得不分析非线性情况的地步。而matlab却还没有非线性分析工具箱。(The increasing number of disciplines have been developed to the point of having to analyze the nonlinear case. Matlab still has no nonlinear analysis toolbox.)

The time is calculated and converted to 64-bit in the first and second lines and then converted to local time zone before being converted to a SYSTEMTIME structure. Last of all the system time is set.

matlab的教程，例题，包括数值，符号，图像等运算及答案(matlab tutorials, sample questions, including the values, symbols, images and other computing and answers)

这是matlab中M序列的产生和仿真方面的文件,希望有用,pdf格式(This is a matlab generated sequences in M and simulation aspects of the document, hoping that useful, pdf format)

Region fucion homogenity creterea

程序设计问题和学习有效题目，可以有效提高初学者学习能力。(it can inprove the ability of the learners)