code: def q3_3():
      G = main_q3()
      pole_zero_plot(G[0, 0])
  
file_path: sympy/doc/src/guides/physics/generate_plots.py
imports: from sympy import Matrix, laplace_transform, inverse_laplace_transform, exp, cos, sqrt, sin
  from sympy.abc import s, t
  from sympy.physics.control import *
label_desc: Use image node_id 2 for calling a global function with example usage: q3_3() without return types