math, matrix operations

包含几乎所有的排序算法-contains almost all the Sort Algorithm

一、 一元三次回归方程 CubicMultinomialRegress.cs 方程模型为Y=a*X(3)+b*X(2)+c*X(1)+d public override double[] buildFormula() 得到系数数组，存放顺序与模型系数相反，即该数组中系数的值依次是d,c,b,a。 以后所述所有模型的系数存放均与此相同（多元线性回归方程除外）。 public override double forecast(double x) 预测函数，根据模型得到预测结果 public override double computeR2() 计算相关系数（决定系数），系数越接近1，数据越满足该模型。 -1, one dollar three regression equations CubicMultinomialRegress.cs equation model for Y = a* X (3)+ B* X (2)+ C* X (1)+ Dpublic override double [] buildFormula () get coefficient array, store order and model coefficients contrary, that is, the array is followed by the value of coefficient d, c, b, a. After all the model described in the coefficient of storage are the same (except for multiple linear regression equation). public override double forecast (double x) prediction function, according to the results of model prediction public override double computeR2 () calculated the correlation coefficient (determination coefficient), coefficient of the closer one, the dat

一个可分解上万阶稀疏矩阵的SVD算法-a million bands on the sparse matrix of SVD algorithm

弦截法求解非线性方程，已在TC2.0环境中编译通过-xianjie method for solving nonlinear equations, in the environment WITH TC 2.0 compiler through

Heritrix是一个开源,可扩展的web爬虫项目。Heritrix设计成严格按照robots.txt文件的排除指示和META robots标签。-Heritrix is an open source, scalable web reptiles project. Heritrix is designed in strict accordance with the robots.txt file to exclude directives and META robots tags.

这是一个关于学生管理系统的程序，可以管理学生的成绩等信息，C语言编程。

308809kalman滤波器详细解释说明-Filter 308809kalman detailed explanations

贪心加回溯，按照顺时针顺序，每次产生一个新的路点，并验证此路点的可用性，需要考虑的问题包括是否超出棋盘和此点已经走过与否。如新路点可用，则入栈，并执行下一步，每次按照上一路点的位置生成新路点。如一个路点的可扩展路点数为0，则走不下去了，进行回溯。

在matlab环境下能进行各种曲线拟合的算法，非常好。-In the matlab environment to conduct various kinds of curve fitting algorithms, very good.

资源描述 偏微分方程问题：假定一个方形材料100mm*100mm，四边分别为第一、第二、第三类边界条件，无内热源，导热系数为常数，分析该区域内的温度变化。