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考虑了静态传递误差，齿轮几何偏心的影响建立3平行轴齿轮啮合动力学模型(Consider the impact of static geometry eccentric transmission error, the establishment of three parallel shaft gear gear dynamics model)

fft小程序：可用于分析离散值采集数据的谐波含有率，谐波角度等(fft小程序：可用于分析离散值采集数据的谐波含有率，谐波角度等 FFT small program: can be used to analyze the discrete value of the data acquisition of the harmonic content, harmonic angle, etc. )

一个简单的LM算法程序，可以帮助你理解LM算法，还包括LM的解释(The neural network control method is used to control the unit step input of the controlled object)

此代码属于地球物理领域，是用有限差分开发的直流电法三维正演，基于FORTRAN平台，此代码具有很高的运算效率，对于从事地球物理领域的人来说是不可多得的(This code belongs to the field of geophysics, is developed using finite difference method of three-dimensional forward modeling of DC, FORTRAN-based platform, this code has high computing efficiency, people engaged in geophysical field is rare)

三次样条插值公式C语言编程示例(Cubic spline interpolation formula C language programming examples)

伽辽金有限元解微分方程源代码，带注释，初学者学习使用非常好(Galerkin finit element method )

说明：  统计学习经典教材，面试必备，详细介绍支持向量机、Boosting、最大熵、条件随机场等十个统计学习方法。(Classic textbooks for statistical study are essential for interviews)

二级转运站选址数学规划模型求解的lingo 程序(Lingo Program for Solving Mathematical Programming Model of Secondary Transfer Station Location)

实现复数运算符的重载，对C++初学者来说有一定的参考价值。(Complex operator overloading, C++ beginners a certain reference value . )

Matlab求解微分方程组，几种经典算法(MATLAB Solves Differential Equations, Several Classical Algorithms)