code: def aps05_f(x):
      r"""Simple Trigonometric function"""
      return np.sin(x) - 1.0 / 2
  
imports: from __future__ import division, print_function, absolute_import
  from random import random
  import numpy
  from scipy.optimize import zeros
label_desc: Use image node_id 25 for calling a global function with example usage: aps05_f(x) and returns: unknown