import numpy as np
import matplotlib.pyplot as plt

#Krzywe Lissajous

N=1000
A=B=1

a=9
b=8
d=np.pi/2

t=np.linspace(0,2*np.pi,N)

x=A*np.sin(a*t+d)
y=B*np.sin(b*t)

plt.plot(x,y)
plt.axis("scaled")
plt.show()