By: Tao Steven Zheng (鄭濤)

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 1-dimensional random walks and plots them. Each plot starts at 0 and at each step moves up (+1) or down (?1) with equal probability.

隨機(jī)游動（random walk）是一種隨機(jī)過程（stochastic process），它描述了在某些數(shù)學(xué)空間（如整數(shù)）上由一系列隨機(jī)步驟組成的隨機(jī)游動。以下的 Python 代碼生成三個一維隨機(jī)游動并繪制它們。每個繪圖從 0 開始，每一步以同樣的概率可以向上（+1）或向下 (?1）移動。

?Results

結(jié)果

Looks like the stock market!

看上去像股市！