test_my_polyfit

焊接模拟，fluent，电弧udf，钨极氩弧焊，源项(Welding simulation, fluent, arc udf, TIG welding, the source term)

雅可比迭代（过关法）计算实对称矩阵的特征值和特征向量(Jacobi iteration (immigration law) the calculation of Real Symmetric Matrix Eigenvalues and eigenvectors)

说明：  给定四个数（1--13），判经过四则运算后能否得到结果24，若能，输出表达式。 (Given the number four (1- 13), after sub after four computing results can be 24, if the output expression.)

there is an other java project in eclipse explaine how to code a simple calculator with a motor class

MATLAB语言编程工具编制测距模型分析界面，具有可变换测距模型，可变换参数设置及测距结果显示，精度分析等功能。(MATLAB language programming tools for the preparation of Ranging model analysis interface with convertible ranging model of transformation parameters can be set up and ranging results showed that precision of analysis functions.)

主要功能是进行高斯正算，高斯反算及透视方位投影的显示。(Main function is to be considered are Gaussian, inverse Gaussian and the perspective projection display position.)

ABAQUS扩展子程序开发，用于计算模拟(ABAQUS extended subroutine application)

通过滑动T检验时间序列的变化趋势，一般多用于气象分析(T-test time series by sliding the trend, generally used for weather analysis)

分析两时间序列之间的超前和之后关系，计算滞时长度，多用于水文气象方面分析研究(Analysis ahead of and after the relationship between the two time series, calculating the lag length, used for the analysis of hydrometeorological)

编写一个使用KMP算法的字符串匹配程序。 使用方法：字符串匹配.exe -f xxx.txt -s xxx -f 指定要查找的文件 -s 指定要查找的字符串(Writing a string matching algorithm using KMP program. How to use: string matching exe-f xxx.txt-s xxx-f to specify the file you want to find-s to specify the search string)