code: def aps12_f(x, n):
      r"""n-th root of x, with a zero at x=n"""
      return np.power(x, 1.0 / n) - np.power(n, 1.0 / n)
  
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 46 for calling a global function with example usage: aps12_f(x, n) and returns: unknown