\label{Authoring_M_Tag}
Wrapping TeX with <m > </m >\index{m tag}\index{tag, <m>} will put the
TeX through the TTH\index{TTH}(tex to html) converter when rendering a
resource to a web page.

If you want variables inside of this tag to be evaluated before the
tex gets converted, then use <m eval=''on'' >\index{eval=on}. For
example, <m eval=''on''>\textbackslash{}[\$eqn\textbackslash{}]</m >,
will evaluate the variable \$eqn first and then run it through the
TTH\index{TTH} converter.

For example, put the following in a script in the resource:

\texttt{\$eq = ``\$a+\$b''; \$eq =~ s/\textbackslash{}+-/-/g;}

and in a text area, you can type:

\texttt{<m eval=''on''>\$eq</m>}

You will get the equation rendered with no +-, no matter what value
\$b may take on.