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.
The deliberate omission of a word or phrase from prose done for effect by the author. A short poem with a clever twist at the end, or a concise and witty statement. A quotation or aphorism at the beginnning of a literary work suggestive of theme. A more agreeable or less offensive substitute for generally unpleasant words or concepts. The act of interpreting or discovering the meaning of a text.