--- loncom/html/adm/help/tex/Authoring_Output_Tags.tex	2011/12/23 19:37:57	1.16
+++ loncom/html/adm/help/tex/Authoring_Output_Tags.tex	2013/07/05 18:30:40	1.17
@@ -4,23 +4,25 @@
 This group of tags generates useful output. 
 
 \begin{itemize}
-\item \textbf{algebra}\index{algebra}: Typesets algebraic expressions
+\item \textbf{algebra}\index{algebra}\index{format algebra}: Typesets algebraic expressions
 \begin{verbatim}
 <algebra>2x^y+sqrt(3/x^2)</algebra>
 \end{verbatim}
 Expressions are displayed using the math expression display mechanism defined in the user's preferences.  The default is tth.  See the section below concerning the $<$m$>$ tag for more information on that as well as on the attribute \textbf{display}.
-\item \textbf{chem}\index{chem}: Typesets chemical equation 
+\item \textbf{chem}\index{chem}\index{format reaction}: Typesets chemical equation 
 \begin{verbatim}
   <chem>O2 + 2H2 -> 2H2O</chem>
 \end{verbatim}
-\item \textbf{num}\index{num}: Typesets a number formatted in scientific notation, fixed point, fixed point with commas, fixed point with commas and dollar sign, or in significant digits. 
+\item \textbf{num}\index{num}\index{format number}: Typesets a number formatted in scientific notation, fixed point, fixed point with commas, fixed point with commas and dollar sign, or in significant digits. 
 \begin{verbatim}
-  <num format="2E">31454678</num>
-  <num format="2f">31454678</num>
-  <num format="2f">31454678</num>
-  <num format=",2f">31454678</num>
-  <num format="$2f">31454678</num>
-  <num format="2s">31454678</num>
+  <num format="2E">31454678</num> results in 3.15 x 10^7
+  <num format="2f">31454678</num> results in 31454678.00
+  <num format="4g">31454678</num> results in 3.145 x 10^7
+  <num format="4g">314.54678</num> results in 314.5
+  <num format=",2f">31454678</num> results in 31,454,678.00
+  <num format="$2f">31454678</num> results in $31,454,678.00
+  <num format="2s">31454678</num> results in 31000000
+  <num format=",2s">31454678</num> results in 31,000,000
 \end{verbatim}
 \item \textbf{parse}\index{parse}: to display the parsed view of a variable's
 contents