--- loncom/html/adm/help/tex/Numerical_Response_Format.tex	2002/07/18 15:52:27	1.2
+++ loncom/html/adm/help/tex/Numerical_Response_Format.tex	2013/08/27 18:51:40	1.5
@@ -5,5 +5,7 @@ that it computed {}``.333333333'' as the
 that, you can use the \textbf{Format} field. Format strings like {}``2E''
 (without the quotes) will display three significant digits in scientific
 notation. Format strings like {}``2f'' will display two digits after the
-decimal point.
+decimal point. Format strings like {}``2s'' will round a number to 
+2 significant digits. For a summary of numerical format statements, see the 
+\texttt{num} tag item in the Output Tags section (\ref{Authoring_Output_Tags}).