'''
Author: SJ2050
Date: 2021-10-29 19:56:04
LastEditTime: 2021-10-29 22:57:17
Version: v0.0.1
Description: Solution for homework2.3.
Copyright © 2021 SJ2050
'''
import numpy as np
from matplotlib import pyplot as plt

if __name__ == '__main__':
    ts = np.array([i for i in range(1000)])
    xs = np.zeros(1000)
    ys = np.zeros(1000)
    xs[0] = np.random.rand(1)*2-1
    ys[0] = np.random.rand(1)*2-1

    for i in range(1, 1000):
        xs[i] = xs[i-1]+np.random.rand(1)*2-1
        ys[i] = ys[i-1]+np.random.rand(1)*2-1

    plt.plot(xs, ys)
    plt.show()