import matplotlib.pyplot as plt
import numpy as np

x=np.linspace(0.05,10,1000)
y=np.sin(x)

plt.plot(x,y,ls='-.',lw=2,c='c',label='plot figure')
plt.legend()

plt.text(3.10,0.08,"y=sin(x)",weight='bold',color='b')
plt.show()