插值与拟合，解方程，数据分析，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,一种基于多文档得图像合并技术。- Interpolation and fitting, solution of equations, data analysis, Monte Carlo simulation method of calculating the American option price and basic descr iption, Based on multi-document image obtained combining technique.