For some reason the desmos engine doesn't do mod(x,3)=0, perhaps it's graphing an infinately small point. If you allow the value of the modular function to be less than a small number, say, mod(x,3)<0.01, then you will see the points you expect.
Verbatim is defined as an exact repetition without changing the words. An example of verbatim is when you quote someone exactly without changing anything. word for word; in exactly the same words. Origin of verbatim.
Lotsa space for your liquids. A variant on the word verbiage (meaning verbosity) that typically refers to written, official text. From a recipient point of view, verbage refers to the word garbage of form letters, websites, and other official correspondence that is by nature impersonal.