We can choose different forms, because it is just a cake, nothing else. Cake is something to eat. Why can't you eat something with a mathematical formula written on it? Some people have more annoying ways to make cakes. Aren't you going to eat? Just something someone wants to give you.
If we can be more sincere or have other ideas, we can be different from others, but we can also be different from others, so we just eat this cake.
Many times, we may not care much about these things, but it just makes us feel scared, because it is deeply terrible for us to recite mathematical formulas or other things at school. We don't have a very good memory, so we can send it out for everyone to see. In fact, this thing is normal for me, and there is a cake full of mathematical formulas. In fact, this kind of cake can be eaten, so can I. If we can't eat, then don't eat. If we don't want to eat, there is no need to force ourselves to eat.