There is probably a very simple answer to this, but I am so extremely simple minded that I need help. If a dollar sign is used directly in a post, the LaTeX editor is invoked, the dollar sign disappears, and spaces are deleted. Particularly in the business math section, that can make for posts weirdly hard to decipher. I presume that there is a way to use a dollar sign without invoking the editor. Would someone please be so kind as to tell me what it is? Thanks, Jeff.