Python代码作业

import matplotlib.pylab as plt
x = 0
y = 1
xx = list()
yy = list()
for n in range(11):
    xx.append(x)
    yy.append(y)
    y = 1.1*y-0.2*x/y
    x = x+0.1
plt.plot(xx,yy)
plt.show()