code: def exp_z_inv(x, y):
      z = complex(x, y)
      f = np.exp(1.0 / z)
      return np.angle(f, deg=True)
  
imports: from vispy import plot
  import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: exp_z_inv(x, y) and returns: np