

"""simple docstring"""






def  UpperCamelCase   (     _lowerCAmelCase       :  int	)			->     int:
	if not isinstance(_lowerCAmelCase,					_lowerCAmelCase	):
		raise ValueError("""double_factorial() only accepts integral values"""	)
	if num < 0:
		raise ValueError("""double_factorial() not defined for negative values"""	)
	_UpperCAmelCase      :							str       =   1
	for i in range(_lowerCAmelCase,					0,					-2	):
		value *= i
	return value


if __name__ == "__main__":
					import doctest

					doctest.testmod()








"""simple docstring"""






def  UpperCamelCase   (     _lowerCAmelCase       :  float,					_lowerCAmelCase       :  float,					_lowerCAmelCase       :  float	)			->     float:
	if mass < 0:
		raise ValueError("""The mass of the body cannot be negative"""	)
	if radius <= 0:
		raise ValueError("""The radius is always a positive non zero integer"""	)
	return (mass * (velocity) ** 2) / radius


if __name__ == "__main__":
						import doctest

						doctest.testmod(verbose=True)





