I know that plane geometry as taught is high school is 2D or two dimensional.
I know that there is something called 3D math. For example, points in space (x,y,z) are different than points in the form (x,y).
How many dimensions are there in the world of mathematics?
Is there such a thing as 4D math?
In other words, is there such a thing as a point having 4 letters like (w,x,y,z)?