[QUESTION] Plotting the outcome of Equations

[dracid]

Hello team,

The goal is to learn the software, so I am constructing a simple TDR circuit.
Now, I've watched the example video with directional couplers, but that's not what I aim to make.

I would like to make a "TDR workbench" of sorts: plot Impedance vs time of a circuit/tline structure --> a TDR impedance profile.

Here's what I got so far (please ignore the background terminal):

So far, seems to "compute" without errors, but for the life of me I cannot find how to plot "tdr_z" in a separate window (or at all).
What I am getting is:

Please help <3 any advice appreciated
-G.

[PetePupalaikis]

The equations are a pre-build step intended for really one purpose only: To perform equations or logic on system variables and produce new values for output variables, that then get brought into your (potentially hierarchical) circuit elements. So, when you enter the equations, all of the variables are available to you, and if you effect an output variable, they get updated when the script ends.
I do have some idea in the future to add a post-build step that would provide some ability to perform some analysis.
But, it turns out that for what you want to do, it is much easier to generate this impedance profile by just creating an s-parameter schematic. For your example, it would look something like this:

which produces a result like this:

Notice that in the lower, right quadrant of the results is shown the impedance profile.