There are several ways to format math using LaTeX. However, some of these are not able to be read by screen readers. The only current way that screen readers are able to distinguish math if it is placed between single ‘$’, like <m>$x$</m>. Thus, all LaTeX needs to be in this format.
You are able to use variables from Perl scripts as well. To do this, simply add eval="on" directly after the initial math tag is declared.
If $number is set to 2, "<m eval="on">$ $number $</m>" will look like "2".
PRINTING ISSUES (Added by D Huckleberry Sept 2015)
Fix: Printing issues are almost 100% of the time related to the formatting of the line that uses latex. It needs to be clean and simple as possible.
Subtle difference, but difference between printing\reading and not….
FRACTIONS or SQRT (Added by D Huckleberry Oct 2015)
Fix: LON-CAPA doesn't like \defrac being used. It will display ok but it will not print or be picked up by a screen reader, so do not use it.
Displays as: [(x)/(y)]
Fix: For sqaure root, make sure what you want under the radical is inside the brackets.
Displays as: √{x+y+z+10}