Four demensional aspects?

Question

So expalin to me how this theory of 4D works? I'm still confused in math class.

Answer 1

The main difference between 3-D and 4-D in math applications is that 4-D functions are always dynamic because the 4th dimension is time, and time is never static (at least not in the real world). A simple example is the growth of a tree, any object in motion, and any other physical process that changes through time.

3-D functions can be spatially dynamic, but 3-D functions have no temporal aspect. An example is the changing topography on a map, which is spatially dynamic, but the map represents features that existed only at the time the map was made.

Answer 2

There are three conventional spatial dimensions: length, width and height. The fourth dimension is often identified with time.