经典衍射之Fraunhofer diffraction的matlab实现，该程序可作为其它二维傅里叶分析的基础代码。-Fraunhofer diffraction, which is one of the classical diffractions, can be implemented by matlab. The program code can be used as the basis of other two-dimensional Fourier analysis.

经典衍射之Fresnel Diffraction的matlab实现，改程序可用作其它全息图重构算法的基础代码。-Fresnel diffraction, one of the classical diffraction, is implemented in this matlab program. It can be used for other holographic reconstruction algorithm code.