Runge-Kutta

本例是研究断裂问题的ABAQUS 子程序代码，使用Fortran语言编辑，研究扩展有限元的同志们可以借鉴一下。(This example is the study of fracture problems ABAQUS subroutine code, Fortran language editing, extended finite element study comrades can learn it.)

有限差分模拟，实现通量校正传输,用于地震正演模拟(For finite difference simulation, to flux calibration transfer function)

计算大气密度的程序 用于航空宇航研究的基础程序(With the code you can getting the atmosphere denisity along the height)

多物理场耦合软件采用有限元方法模拟表面等离子体激元，适合入门学习者(Multi-physics coupling software using the finite element method to simulate the surface plasmon, suitable for entry-learners)

湍流模型re计算流体力学软件udf 可以用于修改UDF文件(turbulence model FLUENT)

说明：  主要用于Fluent 中风剖面、湍流剖面以及耗散率剖面的开发，应用的是日本的规范。(It is mainly used for the development of fluent stroke profile, turbulence profile and dissipation rate profile, and it is applied to the specifications of Japan.)

粘弹性人工边界的实现，在abaqus中快速施加粘弹性人工边界(Realization of viscoelastic artificial boundary, imposed by rapid visco-elastic artificial boundary in abaqus)

处理大规模矩阵，对大规模的矩阵进行分解，即形如分解A=UV(To deal with large-scale matrix, mass matrix decomposition, that is shaped like a decomposition A = UV)

based classification (SRC) has been widely used for face recognition (FR). SRC first codes a testing sample as a sparse linear combination of all the training samples, and then classifies the testing sample by evaluating which class leads to the minimum representation error. While the importance of sparsity is much emphasized in SRC and many related works, the use of collaborative representation (CR) in SRC is ignored by most literature.

介绍箱梁的有限元建模 网格划分 边界条件 加载 求解的命令流(Introduction of finite element modeling of the box girder meshing load boundary conditions for solving the command stream)