By: Tao Steven Zheng (郑涛)

A random walk is a stochastic process that describes a path that consists of a succession of random steps on some mathematical space such as the integers. The following Python code generates three 2-dimensional random walks and plots them.

随机游动（random walk）是一种随机过程（stochastic process），它描述了在某些数学空间（如整数）上由一系列随机步骤组成的随机游动。以下的 Python 代码生成三个二维随机游动并绘制它们。

Results 

Looks like Brownian motion!
看上去像布朗运动！

Animate the 2D random walk