






"""simple docstring"""







from numpy import exp, pi, sqrt

def _a			(		_snake_case				,	_snake_case = 0.0				,	_snake_case = 1.0							):







      """simple docstring"""






      return 1 / sqrt(2 * pi * sigma**2							) * exp(-((x - mu) ** 2) / (2 * sigma**2)							)


if __name__ == "__main__":
  import doctest

  doctest.testmod()











"""simple docstring"""







import numpy as np

def _a			(		_snake_case							):







      """simple docstring"""






      return 1 / (1 + np.exp(-vector							))


if __name__ == "__main__":
  import doctest

  doctest.testmod()



