When I hover my mouse over a given point in a surface plot, I see black lines on the surface tracing along points where x,y, or z remain the same.

Is there a way I can extract/view what the equations of those lines are?

When I hover my mouse over a given point in a surface plot, I see black lines on the surface tracing along points where x,y, or z remain the same.

Is there a way I can extract/view what the equations of those lines are?

@tensor Yes, the equations of the three lines, that are parallel to the axes and pass through the displayed point

are:

- x=0.888, y=0.33 (this one is || to Oz)
- y=0.33, z=0.0146 -the line || Ox
- z=0.0146, x=0.88 - the line || Oy

In the 3d space a line has two equations, because it is defined as the intersection of two planes.

@empet Maybe I’m missing something, but it seems like you’re referring to the straight axis-parallel lines. I am looking for the equations of the curved lines **which trace along the 3d surface**.

If this is what you were referring to, could you please clarify what you mean, e.g. with the line where z=.0146?