How do I use a LaTeX equation editing software (and which is recommended)?
Recommended, especially for college algebra, trigonometry, and calculus. Robust online equations editors are available and can be used to create mathematical expressions externally which can be cut-and-pasted into a DB message in your CMS. The one I recommend is Online LaTeX Equation Editor, an open-source FREE online equation editor by CodeCogs.com. It takes some practice to use, but is quite complete (including symbols for maths, chemistry, physics) and produces cleanly formatted expressions. Follow the steps below to create the expression and its LaTeX code. To cut-and-paste the expression into your CMS: select (highlight) the expression, copy CTRL+C, then paste CTRL+V into the body of your DB message.