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说明：  最速下降法就是梯度下降法,可以用于求解最小二乘问题(线性和非线性都可以)。可以说是求解机器算法的最古老、最经典的模型，另一种常用的方法是最小二乘法。(The steepest descent method is the gradient descent method, which can be used to solve the least squares problem (both linear and non-linear). It can be said that it is the oldest and most classical model for solving machine algorithm. Another commonly used method is the least square method.)

利用M序列作输入估计脉冲响应值，完成对连续和离散系统传递函数参数的辨识(Use of M sequence as the input impulse response estimated value to complete the continuous and discrete transfer function parameter identification)

说明：  迭代算法中的多重网格计算程序Visual C++原代码(iterative algorithm of multiple grid computing procedures Visual C source code)

matlab实现捷联惯性导航解算，四元数更新姿态矩阵。(SINS solver matlab)

该损伤模型通过 商用有限元软件ABAQUS /Explicit 的用户子程序VUMAT 实现，并使用该模型对碳纤维增强环氧树脂 复合材料层合板在横向低速冲击作用下的损伤和变形行为进行预测分析． 数值仿真的结果与试验结 果进行了比较，吻合良好，验证了该模型的有效性．(Through coding user subroutine VUMAT of finite element software ABAQUS /explicit， and applied the model to an example，carbon fiber reinforced epoxy composite laminates under low velocity impact，the prediction for damage and deformation were good agreement with the experimental results．)

Fluent 学习文件 全方位的指导手册 (Building geometry Setting boundary condition types)

求解非线性不动点方程组x=G(x)的非线性塞德尔迭代方法，初值x0(For solving nonlinear fixed point equation x = G (x) the nonlinear Seidel iterative method, initial value x0)

说明：  神经网络算法，希望能对大家有点点帮助，可以相互交流(Neural network algorithm, I hope everyone can have little bit of help, they communicate with each other)

说明：  数字信号处理DSP中，DFT离散傅里叶变换等上机作业。(In digital signal processing DSP, DFT discrete Fourier transform.)

C++中矩阵运算的实现 nr3.h为其他的书籍代码，测试环境为VS2008(Achieve C++ in matrix operations nr3 code for other books)