import matplotlib.pyplot as plt
import numpy as np
x1 = np.zeros(100)
y1 = np.zeros(100)
x=0
y=1
for i in range(100):
y = 1.1*y - 0.2*x/y
x = x + 0.1
x1[i] = x
y1[i] = y
plt.plot(x1,y1)
plt.show()
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-I9LiqPnL-1631785097035)(output_0_0.png)]
```