--- loncom/html/adm/help/tex/Custom_Response_Problems.tex	2006/07/18 17:24:45	1.1
+++ loncom/html/adm/help/tex/Custom_Response_Problems.tex	2017/01/23 20:29:42	1.8
@@ -1,32 +1,2 @@
-\label{Custom_Response_Problems}
-Custom Response is a way to have a problem graded based on an algorithm. The use of this response type is
-generally discouraged, since the responses will not be analyzable by the LON-CAPA statistics tools.
-
-The student answer is stored in the
-variable \$submission, and needs to be evaluated by Perl code inside the <answer>-tag. Custom Response needs to return a standard LON-CAPA grading code:
-\begin{itemize}
-\item EXACT\_ANS: return if solved exactly correctly
-\item APPROX\_ANS: return if solved approximately
-\item INCORRECT: return if not correct, loose try
-\item SIG\_FAIL, NO\_UNIT, ANS\_CNT\_NOT\_MATCH, BAD\_FORMULA, 
-WANTED\_NUMERIC: return if not correct for different reasons, do not loose try
-\end{itemize}
-The answer display is shown instead of the student response in 'show answer' mode.
-The following example illustrates this:
-\begin{verbatim}
-<problem>
-<startouttext />Accept an answer of around 90 or -90<endouttext />
-  <customresponse answerdisplay="something near 90 or -90">
-    <answer type="loncapa/perl">
-# We do not want a vector
-if ($submission=~/\,/) { return 'ANS_CNT_NOT_MATCH'; }
-# Need a numerical answer here
-if ($submission!~/^[\d\.\-\e]+$/i) { return 'WANTED_NUMERIC'; }
-$difference=abs(90-abs($submission));
-if ($difference==0) { return 'EXACT_ANS'; }
-if ($difference < 0.1) { return 'APPROX_ANS'; }
-return 'INCORRECT';</answer>
-    <textline readonly="no" />
-  </customresponse>
-</problem>
-\end{verbatim}
+\label{Custom_Response_Problems}\index{Custom Response}
+Custom Response is a way to have a problem graded based on an algorithm constructed in the perl script. The use of this response type is generally discouraged, since the responses will not be analyzable by the LON-CAPA statistics tools.