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Diff for /loncom/html/adm/help/tex/Authoring_Output_Tags.tex between versions 1.26 and 1.27

version 1.26, 2017/02/01 21:18:43 version 1.27, 2021/01/22 17:16:31
Line 8  This group of tags generates useful outp Line 8  This group of tags generates useful outp
 \begin{verbatim}  \begin{verbatim}
 <algebra>2x^y+sqrt(3/x^2)</algebra>  <algebra>2x^y+sqrt(3/x^2)</algebra>
 \end{verbatim}  \end{verbatim}
 Expressions are displayed using the math expression display mechanism defined in the user's preferences.  See the section below concerning the $<$m$>$ tag for more information on that as well as on the \textbf{display} attribute.  Expressions are displayed using the math expression display mechanism for the current context.  The default is to use
   the display mechanism the user has selected in preferences. This can be overriden by setting the \textbf{display} attribute for the tag. See the section below concerning the $<$m$>$ tag for more information on how the default is set and on the display attribute.
   
 Recognized functions are all trigonometric functions, and the following:  Recognized functions are all trigonometric functions, and the following:
 exp, abs, logten, log, ln, sqrt, sgn, step, fact, int, lim, funX.  exp, abs, logten, log, ln, sqrt, sgn, step, fact, int, lim, funX.
Line 175  to HTML (or MathML) on the fly. The defa Line 176  to HTML (or MathML) on the fly. The defa
 to the display mechanism that the user has selected in preferences. This can be  to the display mechanism that the user has selected in preferences. This can be
 overriden by setting the attribute \textbf{display} to one of  overriden by setting the attribute \textbf{display} to one of
 ``\textbf{tth}'', ``\textbf{mimetex}'' or ``\textbf{mathjax}'' which  ``\textbf{tth}'', ``\textbf{mimetex}'' or ``\textbf{mathjax}'' which
 will force a specific display mechanism. Note that the ``\textbf{jsmath}'' display is deprecated today, and MathJax is used instead when it is specified.  will force a specific display mechanism. Note that the ``\textbf{jsmath}'' display is deprecated today, and MathJax is used instead when it is specified.  If a display attribute is not included, the display mechanism is determined in the following order, with the first one set being the one in effect:
   \begin{enumerate}
   \item In course context: Course-wide default set by Course Coordinator via Settings $>$ Course Settings $>$ Display of resources $>$ Force use of a specific math rendering engine
   \item User's own personal preference set by the user hovering over the user's name at top left of a LON-CAPA page, and selecting Preferences $>$ Math display settings
   \item Domain default set by a Domain Coordinator 
   \item System default set for the LON-CAPA version installed on the server (tth in 2.11 and earlier, mathjax in 2.12).
   \end{enumerate}
   
 The contents of \texttt{<m> </m>} are interpreted as LaTeX outside math environment, which is why using \texttt{<m>\$ \$</m>} is needed to switch to the LaTeX math environment. However, the ``\textbf{mathjax}'' display (which is used by default in recent versions of LON-CAPA) interprets all the contents of \texttt{<m> </m>} as math, and does not support non-math LaTeX. For content to work well with all the display mechanisms, it is therefore important to never use non-math LaTeX for web targets. Even purely for printing, it is better to avoid using non-math LaTeX, as the printing mechanism might use HTML instead of LaTeX in the future.  The contents of \texttt{<m> </m>} are interpreted as LaTeX outside math environment, which is why using \texttt{<m>\$ \$</m>} is needed to switch to the LaTeX math environment. However, the ``\textbf{mathjax}'' display (which is used by default in recent versions of LON-CAPA) interprets all the contents of \texttt{<m> </m>} as math, and does not support non-math LaTeX. For content to work well with all the display mechanisms, it is therefore important to never use non-math LaTeX for web targets. Even purely for printing, it is better to avoid using non-math LaTeX, as the printing mechanism might use HTML instead of LaTeX in the future.
   
 If you want variables inside of this tag to be evaluated before the  If you want variables inside of this tag to be evaluated before the
 tex gets converted, then use eval=``on'' \index{eval=on}. For  tex gets converted, then use eval=``on'' \index{eval=on}. For
 example,  \texttt{<m eval="on">\$ \$eqn \$</m>},  example,  \texttt{<m eval=''on''>\$ \$eqn \$</m>},
 will evaluate the variable \$eqn first and then use the  will evaluate the variable \$eqn first and then use the
 display mechanism.  Anytime you use a variable inside of the m tag,  display mechanism.  Anytime you use a variable inside of the m tag,
 you will want to set eval to on.  you will want to set eval to on.
Line 194  For example, put the following in a scri Line 201  For example, put the following in a scri
   
 and in a text area, you can type:  and in a text area, you can type:
   
 \texttt{<m eval="on">\$ \$eqn \$</m>}  \texttt{<m eval=''on''>\$ \$eqn \$</m>}
   
 You will get the equation rendered with no +-, no matter what value  You will get the equation rendered with no +-, no matter what value
 \$b may take on.  \$b may take on.
Removed from v.1.26  
changed lines
  Added in v.1.27

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