中文说明：用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述,二维声子晶体FDTD方法计算禁带宽度的例子,信号维数的估计，构成不同频率的调制信号，部分实现了追踪测速迭代松弛算法，合成孔径雷达（SAR)目标成像仿真。
English Description：
Using Monte Carlo simulation method to calculate the price of American options and basic description of two-dimensional Photonic Crystal FDTD method for calculating band example dimension estimation of signal, different frequency modulation signals, partial implementation of the tracking speed iterative relaxation methods, synthetic aperture radar (SAR) imaging simulation.