def METHOD_NAME(dtype):
	'''Return the floating point and complex numpy data types with the same
	bit depth per component.
	Parameters
	----------
	dtype : numpy dtype
		The dtype to convert to a floating point and complex dtype.
	Returns
	-------
	float_dtype : numpy dtype
		The floating point dtype.
	complex_dtype : numpy dtype
		The complex dtype.
	'''
	if dtype == np.dtype('float32') or dtype == np.dtype('complex64'):
		complex_dtype = 'complex64'
		float_dtype = 'float32'
	else:
		complex_dtype = 'complex128'
		float_dtype = 'float64'
	return float_dtype, complex_dtype