Fractal functions, used in areas like fractal growth and antennas, were studied to understand their properties. The researchers looked at how many different types of fractal functions exist and how they can be combined. They found that when adding fractal functions together, the one with the highest complexity dominates the result. This means that the most complex fractal function in a sum will determine the overall complexity of the result, absorbing the characteristics of the other functions involved. In simpler terms, when combining fractal functions, the most complex one takes the lead.