I have been looking for a while now, and have been trying some things here and there, but I just cannot seem to find the solution to the problem of mathematical typesetting not being properly displayed in Rmarkdown's HTML output. That definitive guide for Rmarkdown does not seem to mention anything that helps, and online there is just no clear answer to me either. All this searching and fiddling takes too much time.
For example, as suggested by someone, I reloaded the page, but it did not work. Not knowing exactly how to go about the issue, I probably compiled the code (or knitted, or whatever you'd call it), as if it were LaTeX, but it did not work. There were a few other things I tried, but I already forgot about them.
MAIN DESCRIPTION
Essentially, whenever I have some mathematical code, using $ or $$, the raw code instead of the desired mathematical typesetting is displayed in the HTML file.
SUDDEN GOOD RESULT? But now, as I just opened the HTML file again to see what would happen, the typesetting is correct? The only difference I can think of, in this case, is that I was online. What would that have to do with it, if at all?
SOLUTION In any case, seeing all this, what is the next thing to do, to actually get it solved quickly? I want to have the option to send the resultant HTML file to anyone, and there should not be any need to be online.