from sympy import *
from spb import *
import numpy as np
t = symbols("t")
z = np.linspace(0, 6*np.pi, 100)
x = z * np.cos(z)
y = z * np.sin(z)
graphics(
    list_3d(x, y, z, scatter=False),
    list_3d(t * cos(t), t * sin(t), t,
        params={t: (3*pi, 0, 6*pi)}, scatter=True),
    backend=PB
)