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(New page: <h2>Your title here: PG Code Snippet</h2> <!-- Header for these sections -- no modification needed --> <p style="background-color:#eeeeee;border:black solid 1px;padding:3px;"> <em>Thi...)
 
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<p style="background-color:#eeeeee;border:black solid 1px;padding:3px;">
 
<p style="background-color:#eeeeee;border:black solid 1px;padding:3px;">
<em>This code snippet shows the essential PG code to check student answers that are equations.  Note that these are <b>insertions</b>, not a complete PG file.  This code will have to be incorporated into the problem file on which you are working.</em>
+
<em>This PG code shows how to check student answers that are equations.  Note that this is an <b>insertion</b>, not a complete PG file.  This code will have to be incorporated into the problem file on which you are working.</em>
 
</p>
 
</p>
  
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<td style="background-color:#ddffdd;border:black 1px dashed;">
 
<td style="background-color:#ddffdd;border:black 1px dashed;">
 
<pre>
 
<pre>
  loadMacros("any macros files that are needed");
+
DOCUMENT();
 +
loadMacros(
 +
"PGstandard.pl",
 +
"MathObjects.pl",
 +
);
 +
TEXT(beginproblem());
 
</pre>
 
</pre>
 
</td>
 
</td>
 
<td style="background-color:#ccffcc;padding:7px;">
 
<td style="background-color:#ccffcc;padding:7px;">
 
<p>
 
<p>
 +
<b>Initialization:</b>
 
To do ..(what you are doing)........., we don't have to change the  
 
To do ..(what you are doing)........., we don't have to change the  
 
tagging and documentation section of the problem file.   
 
tagging and documentation section of the problem file.   
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<td style="background-color:#ffffdd;border:black 1px dashed;">
 
<td style="background-color:#ffffdd;border:black 1px dashed;">
 
<pre>
 
<pre>
  Context(".....");
+
Context(".....");
  Define context and  variables for the questions
+
Define context and  variables for the questions
  
  $expr = Formula("....");
+
$expr = Formula("....");
 
</pre>
 
</pre>
 
</td>
 
</td>
 
<td style="background-color:#ffffcc;padding:7px;">
 
<td style="background-color:#ffffcc;padding:7px;">
 
<p>
 
<p>
In the problem set-up section of the file, we specify that the Context should be <code>......</code>, and define the answer to be a formula.   
+
<b>Setup:</b>
 +
We specify that the Context should be <code>......</code>, and define the answer to be a formula.   
 
</p>
 
</p>
 
<p>
 
<p>
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<td style="background-color:#ffdddd;border:black 1px dashed;">
 
<td style="background-color:#ffdddd;border:black 1px dashed;">
 
<pre>
 
<pre>
  BEGIN_TEXT
+
BEGIN_TEXT
  ...... question text ......
+
...... question text ......
  END_TEXT
+
END_TEXT
 
</pre>
 
</pre>
 
<td style="background-color:#ffcccc;padding:7px;">
 
<td style="background-color:#ffcccc;padding:7px;">
 
<p>
 
<p>
 +
<b>Main Text:</b>
 
The problem text section of the file is as we'd expect.
 
The problem text section of the file is as we'd expect.
 
</p>
 
</p>
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<td style="background-color:#eeddff;border:black 1px dashed;">
 
<td style="background-color:#eeddff;border:black 1px dashed;">
 
<pre>
 
<pre>
  ANS( $expr->cmp() );
+
$showPartialCorrectAnswers = 1;
 +
 
 +
ANS( $expr->cmp() );
 +
 
 +
ENDDOCUMENT();
 
</pre>
 
</pre>
 
<td style="background-color:#eeccff;padding:7px;">
 
<td style="background-color:#eeccff;padding:7px;">
 
<p>
 
<p>
 +
<b>Answer Evaluation:</b>
 
As is the answer.
 
As is the answer.
 
</p>
 
</p>
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[[Category:Problem Techniques]]
 
[[Category:Problem Techniques]]
 +
 +
 +
<ul>
 +
<li>POD documentation: [http://webwork.maa.org/doc/cvs/pg_CURRENT/ nameOfMacro.pl.html]</li>
 +
<li>PG macro: [http://cvs.webwork.rochester.edu/viewcvs.cgi/pg/macros/#dirlist nameOfMacro.pl]</li>
 +
</ul>

Latest revision as of 15:19, 14 May 2010

Your title here: PG Code Snippet


This PG code shows how to check student answers that are equations. Note that this is an insertion, not a complete PG file. This code will have to be incorporated into the problem file on which you are working.

Problem Techniques Index

PG problem file Explanation
DOCUMENT();
loadMacros(
"PGstandard.pl",
"MathObjects.pl",
);
TEXT(beginproblem());

Initialization: To do ..(what you are doing)........., we don't have to change the tagging and documentation section of the problem file. In the initialization section, we need to include the macros file


.pl.

Context(".....");
Define context and  variables for the questions

$expr = Formula("....");

Setup: We specify that the Context should be ......, and define the answer to be a formula.

Notes: on using this and related Contexts.

BEGIN_TEXT
...... question text ......
END_TEXT

Main Text: The problem text section of the file is as we'd expect.

$showPartialCorrectAnswers = 1;

ANS( $expr->cmp() );

ENDDOCUMENT();

Answer Evaluation: As is the answer.

Problem Techniques Index


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