BESSEL

用来计算航天器再入质点弹道，其中包括插值算法，龙格库塔法以及大气模型(Used to calculate the particle trajectory of spacecraft re-entry, including the interpolation algorithm, Runge-Kutta method as well as atmospheric model)

用来画多输入多输出系统的格式带，输入是矩阵形式(draw gershgorin)

C++实现的FFT，详细，简单，内含多个测试类(using C++ implements fft，including serials class)

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))

GNU Scientific Library (GSL) 是一个用于科学计算的 C 语言类库。有超过1000个函数。 (GNU Scientific Library (GSL) is a C language library for scientific computing. There are more than 1000 functions.)

CT迭代重建算法中3维投影矩阵的生成算法，该算法对学习计算机断层层析成像很有帮助。(CT image reconstruction projection ,3D)

通过C++头文件实现的有限元形状函数计算程序(finite element shape function)

运用MATLAB软件做三元一次、三元二次及最小二乘法的数据仿真(MATLAB software for the ternary once Quadratic least squares method of data simulation)

说明：  该文件是用C语言实现快速傅里叶变换的源代码，需要的朋友快下载(The document is used C language to achieve fast Fourier transform of the source code, need friends fast download)

PSO Code with visulation pro[erlyyy