arcLength

计算分数阶微分方程lypunov指数，确定混沌系统的混沌状态。(Calculated fractional differential equations lypunov index to determine the chaotic state of the chaotic system.)

详细介绍了有限元法基础知识，对有限元入门者很有帮助(Details the basics of the finite element method, finite element beginners helpful)

上三角或下三角矩阵也有大部份的元素不储存值（为0），我们可以将它们使用一维阵列来储存以节省储存空间，而对称矩阵因为对称于对角线，所以可以视为上三角或下三角矩阵来储存。(Upper or lower triangular matrix or a large majority of elements are not stored value (0), we can use them to store a one-dimensional array in order to save storage space, and because the symmetrical diagonal symmetric matrix, it can be regarded as the or lower triangular matrix storage.)

基于配电网络辐射型的前推回代潮流计算程序，包括分层等内容(And backward substitution based on the radiation type of distribution network before flow calculation procedures, including the contents of the stratification)

对于应用数学专业学习非线性混沌控制的学生非常有用，可以下载并尝试自己动手改变后半部分，就能应用于新系统中(For students applied mathematics learning nonlinear chaotic control is very useful, you can download and try yourself to change the second half, will be able to be applied to the new system)

广义预测控制算法仿真，通过最小二乘法对系统进行在线辨识，并与PID对比，能运行的(Generalized predictive control algorithm simulation, through the of least squares method for on-line identification system, can run)

阻尼牛顿法、最速下降法、变尺度法的matlab程序。(Damped Newton' s method, steepest descent method, variable metric method matlab program.)

最小二乘递推算法及其matlab实现（计算估计值）(least squares method)

凸轮的程序，很好，可以随更改，可以随便变化凸轮的结构。(Cam program, well, you can with the changes, you can easily change the structure of the cam.)

用于利用最大熵法求解数据资料服从的分布类型。并应用最小二乘法求解模型以得到最优解(Using the maximum entropy method for solving the data distribution type of obedience. And apply the least squares method to obtain the optimal solution to solve the model)