I'm wondering if it's possible to do something like this in Latex?
I have seen the similar question here, but I'm wondering if there is a way to shade, have dotted lines, and have the dot? Ideally, I'd want to have a way to show how different $\epsilon$ values affect the $\delta$ values, i.e., as $\epsilon$ gets smaller, there is a $\delta$ that works.
So far, I've simply recreated the image in PowerPoint which I then copy paste in my tex document.
