# Questions migrated from sites without MathJax to sites with MathJax may be rendered incorrectly

This question was migrated from Programmers to Engineering yesterday. One of its answers was formatted oddly:

When the migration was rejected, all answers were deleted on Engineering; users with the appropriate permissions can see the issue captured in the revision history of the answer.

The Markdown of the original revision is:

Well, depending on who you believe, [Healthcare.gov cost between $70 million and...let's call it an even$100 quintillion-Simoleans][4] (I
think we can all agree that it's definitely somewhere in there.)


The dollar signs $ are used as MathJax delimiters on Engineering SE, so the text between them was interpreted in the first revision as a MathJax formula. I was able to fix the issue after the fact by editing the answer to escape the dollar signs \$. Un-escaped dollar signs $ should be escaped when the question hits one of the sites where they are used as MathJax delimiters. • How about using a delimiter that makes more common sense then a$? Sep 9 '19 at 9:59
• Air, different sites escape dollar signs differently. I don't have time ATM to search for which/how but I think it was either backslash vs. double dollar sign equals one rendered dollar sign - which adds a few more ways the migration can be rendered incorrectly.
– Rob
Sep 9 '19 at 10:58

This has happened to me enough times that I don't think posts should be transformed. The likelihood of \$ appearing in a post that's on-topic on a site with MathJax is not that high. Or maybe it should only be done between specific pairs of sites: it would make sense for Money → Economics but not for Security → Cryptography or Stack Overflow → Computer Science.