Geometric Brownian Motion Simulations for Stock Price

Geometric Brownian Motion (GBM) is a mathematical model used to describe the stochastic movements of continuous-time processes. It's a fundamental concept in finance, particularly in modelling stock prices and other assets' movements in financial markets几何布朗运动（Geometric Brownian Motion，GBM）是一种用于描述连续时间过程随机运动的数学模型。它是金融学中的基础性核心概念，尤其适用于对金融市场中的股票价格及其他资产的价格变动进行建模。