Gauss_main_element_solve_equation

面元法程序，用于计算飞行器气动力、气动力矩系数。(panel code for aero calculation.)

LU decomposition program.

sorting different kind of arrays

abaqus粘弹性人工边界，手动添加比较简单的模型(learning abaqus)

说明：  用四阶Runge-Kutta法解延迟微分方程组，用到的朋友看一下啊(Using fourth-order Runge-Kutta method for delay differential equations, a friend used to look at ah)

四面体网格划分的有限元计算源代码，在将变形体划分为四面体后，输入节点坐标，程序利用弹塑性本构，将载荷和位移关系转变为线性方程组，是一个很好的求解简单三维变形体的程序，还可输出单元变形量，应力等。(Tetrahedral mesh of the finite element method source code, in the deformed tetrahedron is divided into, the input node coordinates, the program using elastic-plastic constitutive, will be the relationship between load and displacement into linear equations, is a very good Solving a simple three-dimensional deformation body procedures, but also the output unit deformation, stress and so on.)

惩罚函数法C语言相关程序 它将有约束最优化问题转化为求解无约束最优化问题：其中M为足够大的正数， 起"惩罚"作用， 称之为罚因子，F(x, M )称为罚函数。(Penalty Function Method C language-related program it would have constrained optimization problem is transformed into solving unconstrained optimization problem: where M is a sufficiently large positive number, from the " punishment" effect, called the penalty factor, F (x, M) called the penalty function.)

工业汽轮机设计计算程序，具有很好的参考价值，可以参考学习一下(Industrial steam turbine design calculation procedures, a good reference value, you can refer to learn about)

电磁传播损耗的计算方法，模拟电磁波在大气中的传播路径(A propagation path of the electromagnetic propagation loss calculation method and the simulation of electromagnetic wave in the atmosphere)

说明：  遗传算法用来求解带容量的车辆路径问题，用c++完成的代码(The genetic algorithm is used to solve the vehicle routing problem with capacity. The code is completed by c++.)