lbm2d

格子boltzmann方法模拟2D圆柱绕流程序 C++程序d2Q9模型(Lattice boltzmann simulation program 2D flow around a cylinder model of C++ program d2Q9)

我收集的老外编的椭圆拟合算法，C++实现，输入一组XY数据就能求出椭圆参数(I collected foreigner series the oval fitting algorithm, C++, achieve)

录音程序，音频录音fft程序，并加界面显示(radio record code)

C++的求阶乘的程序，对本科C++课程可能有些帮助(Factorial in C++ program, it maybe helpful for some C++ course)

fluent模拟焊接，熔滴过渡的质量源项(Welding Simulation， mass source)

四杆桁架结构的有限元分析程序，在VS2008软件中使用C++语言编写，输入为四杆桁架结构的节点坐标，材料参数，边界条件，输出为各节点的应力和应变。(Four-bar truss structure finite element analysis program, the use of C++ written in VS2008 software, input node coordinate the four-bar truss structure, material parameters, boundary conditions, the output of the stress and strain of each node.)

可进行最小二乘法线性拟合输出，包含源代码及生成后的程序(Least-squares linear fit can be output)

F-K域偏移法和相移法偏移程序（C语言）(FK domain migration method and the phase- shift method migration program (C language))

之前找不到合适精度的log2x函数的定点化源码，经过实现并验证后，发上来大家一起学习(fixed version for log2x)

三维的FDTD实现，采用CPML边界，较为详细的注释(Three-dimensional FDTD using CPML border, more detailed notes)