Well, there isn't a single primary purpose for artists, as it changes from person to person. However, I would guess that it is to portray what they are feeling in that moment in time to people.
Hope this helps!!
The Pyramids of Giza includes all of the following except Narmer
Answer:
Procrustes analysis , quasi-isometry , geometric ,
point , line , curve , plane , plane figure , cube ,
sphere .