二维光场分析（球面波）。编程实现单色球面波在给定二维平面上的构建，并用相位表达式直接计算其相位，与通过复光场得到的相位相比较，观察相位包裹（缠绕）现象。与平行光相干涉，观察干涉光强分布。-2 d light field analysis (spherical wave).Programming monochromatic spherical wave in a given the construction of a 2 d plane, and the phase expression dire

generating the 2D grid of numbers (x + y*1j), we wish to easily support transformations of the plane with arbitrary complex functions f.