Is it possible to generate an equation from a 3D graph? I have seen many options for 2D graphs, but not 3. If so, how should I go about accomplishing this?

What kind of 3D graph? Are you doing a surface profiler? You can fit all kinds of models for 3 dimensions so it's hard to give any kind of definite answer.

What kind of 3D graph? Are you doing a surface profiler? You can fit all kinds of models for 3 dimensions so it's hard to give any kind of definite answer.