I guess it comes down to what the market is, how much work it would take to do the conversions, and what compromises you're willing to take. Inline math is easier to deal with, usually it's just a matter of making sure the characters display correctly. Complex multi-line math is where things start to fall down. If this is a specialized technical reference that is of interest to 500 people, it might not be worth a lot of work to sell 20 copies on Kindle.