from sympy import symbols, latex
from spb import *
import colorcet
u, v, w, z = symbols("u, v, w, z")
expr = (z - 1) / (u * z**2 + v * z + w * 1)
params = {
   u: (1, 1e-5, 2),
   v: (1, 0, 2),
   w: (1, 0, 2),
}
graphics(
   domain_coloring(
      expr, (z, -2-2j, 2+2j), coloring="m", cmap=colorcet.CET_C7,
      n=500, params=params),
   use_latex=False, title="$%s$" % latex(expr), grid=False,
   update_event=True
)