


import math






def 					lowerCamelCase_   (	_a     ,       _a	):




		"""simple docstring"""






		if initial_intensity < 0:
				raise ValueError('''The value of intensity cannot be negative'''	)
				# handling of negative values of initial intensity
		if angle < 0 or angle > 360:
				raise ValueError('''In Malus Law, the angle is in the range 0-360 degrees'''	)
				# handling of values out of allowed range
		return initial_intensity * (math.cos(math.radians(_a	)	) ** 2)


if __name__ == "__main__":
		import doctest

		doctest.testmod(name='''malus_law''')








def 					lowerCamelCase_   (	_a	):




		"""simple docstring"""






		if number < 0:
				raise ValueError('''number must not be negative'''	)
		return number & (number - 1) == 0


if __name__ == "__main__":
		import doctest

		doctest.testmod()




