Wood represents hair growth, gold represents perseverance, and water represents agility. It is really suitable for learning mathematics, but it is relative.
Mathematics is greater than five elements, including five elements.
So it is not appropriate to ask what the five elements of mathematics major belong to. You can ask people who like the five elements what math is suitable for them.
I think wood, gold and water are really suitable, not absolutely relative.
Fire soil can also be fire, because of enthusiasm, stability and perseverance, because gold comes from soil.