Difference between revisions of "DraggableProofs"

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(Created page with "<h2>Using the Sage Cell Server</h2> <!-- Header for these sections -- no modification needed --> <!-- 300px|thumb|right|Click to enlarge -->...")
 
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UNDER CONSTRUCTION!!!
  
  +
 
<p style="background-color:#f9f9f9;border:black solid 1px;padding:3px;">
  
<p style="background-color:#f9f9f9;border:black solid 1px;padding:3px;">
−
This PG code shows how to embed a call to the Sage Cell Server from within a problem.
 +
This PG code shows how to apply a javascript-enabled collection of drag and drop statements.
 
</p>
  
</p>
   
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loadMacros(
  
loadMacros(
 
"PGstandard.pl",
  
"PGstandard.pl",
−
"MathObjects.pl",
 +
"draggableProof.pl",
−
"sage.pl",
  
 
);
  
);
  +
 
</pre>
  
</pre>
   
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<td style="background-color:#ccffcc;padding:7px;">
  
<td style="background-color:#ccffcc;padding:7px;">
−
<p> The sage.pl macro is not yet part of the standard WeBWorK distribution. You will need to download the macro file [[https://github.com/drjt/pg/blob/feature/SageMacro/macros/sage.pl sage.pl ]] and place it in your local macros directory for this to work.
 +
<p> The draggableProof.pl macro is not yet part of the standard WeBWorK distribution. You will need to download the macro file [[https://github.com/drjt/pg/blob/feature/SageMacro/macros/sage.pl sage.pl ]] FIX THIS LINK and place it in your local macros directory for this to work.
 
</p>
  
</p>
 
</td>
  
</td>
 
</tr>
  
</tr>
   
−
<!-- Setup section -->
 +
<!-- Create the lists -->
   
 
<tr valign="top">
  
<tr valign="top">
 
<td style="background-color:#ffffdd;border:black 1px dashed;">
  
<td style="background-color:#ffffdd;border:black 1px dashed;">
 
<pre>
  
<pre>
−
###############################################
  
  +
TEXT(beginproblem());
−
##
  
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## pg initializations and regular WeBWorK code
  
   
−
$a = random(2,5,1);
  
  +
$CorrectProof = DraggableProof([
  +
"Jason Aubrey",
  +
"Someone better than Jason but less than everyone else",
  +
"John Travis"
  +
],
   
−
$ansList = List("(-cos(pi*$a)/$a + 1/$a)");
  
  +
[
  +
"Don't complain about it",
  +
"\(x^2\)"
  +
],
   
−
</pre>
  
  +
SourceLabel => "Choose from these",
−
</td>
  
  +
TargetLabel => "Place the people in order of increasing usefulness.",
−
<td style="background-color:#ffffcc;padding:7px;">
  
−
The WeBWorK set up for the problem is the same, but in addition you have
  
−
to consider how you will pass the problem parameters into Sage. For example,
  
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if you want to pass
  
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<code>$f = (x-(-2))(x+2)(x+4)</code> it may be best to create two versions of <code>f</code>:
  
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<code>$f_raw = (x-(-2))*(x+2)*(x+4);</code> to pass to Sage and the math object
  
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<code>$f = Compute("$f_raw");</code> to use in WeBWorK.
  
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<p>
  
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Also, you will need to store the list of correct answers in a variable named $ansList (which is also customizable).
  
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</p>
  
−
<p>
  
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Finally, if your final answer is a matrix converted to a list, then do not use extra parenthesis here. Otherwise $ansList will be a List of Lists which is probably a bad thing.
  
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</p>
  
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</td>
  
−
</tr>
  
−  
−
<!-- Initialize the Sage embedding -->
  
−  
−
<tr valign="top">
  
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<td style="background-color:#ffffdd;border:black 1px dashed;">
  
−
<pre>
  
−  
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$SageCode = <<SAGE_CODE;
  
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Area = integrate(sin($a*x),x,0,pi)
  
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record_answer((Area)) # leave out if you return no answer
  
−  
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SAGE_CODE
  
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</pre>
  
−
</td>
  
−  
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<td style="background-color:#ffcccc;padding:7px;">
  
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<p>
  
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$SageCode = <<SAGE_CODE;
 
−
</p>
  
−
<p>
  
−
denotes the beginning of the Sage Python code to be inserted into the WeBWorK problem. This will be paired at the end with and ending SAGE_CODE which must be left-justified. This portion will create a perl variable $SageCode which is the complete Python text.
  
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</p>
  
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<p>To share values computed inside the Sage cell back to the WeBWorK problem, create a single Sage list named "sageAnswer" (which is configurable).</p>
  
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</td>
  
−
</tr>
  
−  
−
<!-- Sage macro and options section -->
  
−  
−
<tr valign="top">
  
−
<td style="background-color:#ffdddd;border:black 1px dashed;">
  
−
<pre>
  
−  
−
Sage(
  
−
SageCode=>$SageCode,
  
 
);
  
);
−  
 
</pre>
  
</pre>
 
</td>
  
</td>
   
 
<td style="background-color:#ffcccc;padding:7px;">
  
<td style="background-color:#ffcccc;padding:7px;">
  +
Notice the format is:
 
<p>
  
<p>
−
<b>Main sage script:</b>
  
  +
[ list of correct statement in order],
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</p>
 +
<br>
−
<p>
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[ list of incorrect statements in order],
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Working Sage code will work verbatim except for a couple of notational changes caused by conflicting syntax between perl and sage. In particular, since "@" is used for tables in perl and for interacts in sage, one will need to replace "@" with "~~@".
 +
options
   
−
Further, WeBWorK uses <code>\( and \)</code> to delimit latex and "$" for variables while Sage uses "$' to delimit latex. Therefore, converting each pair of Sage's latex $ delimiters averts any conflict.
  
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</p>
  
−
<p>
  
−
The defaults for several of the customizable options:
  
−
<pre>
  
−
SageCode => 'print 1+2', # This is the default code if none given.
  
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ButtonText => 'Start/Restart the Interactive Cell',
  
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CellServer => 'http://sagecell.sagemath.org',
  
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SageAnswerName => 'sageAnswer', # not used yet
  
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SageAnswerValue => 'ansList', # not used yet
  
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AutoEvaluateCell => 'true', # 'false' requires student to activate cell
  
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ShowAnswerBlank => 'hidden', # Set to 'input' to see Sage answer
  
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AnswerReturn => 1, # Set to 0 if Sage returns nothing
  
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HideElements => [''], # List of items to hide in cell
  
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LinkedCells => 'false', # To allow for sharing between multiple cells
  
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</pre>
  
−
</p>
  
−
<p>
  
−
You can hide various elements of the sage cell by listing them in the HideElements flag. Some options:
  
−
<pre>
  
−
Input Elements:
  
−
Editor (editor)
  
−
Editor type toggle (editorToggle)
  
−
Language selection box (language)
  
−
Evaluate button (evalButton)
  
−
Output Elements:
  
−
Permalinks (permalinks)
  
−
Session output (output)
  
−
Session end message (done)
  
−
Session files (sessionFiles)
  
−
</pre>
  
−
</p>
  
 
</td>
  
</td>
 
</tr>
  
</tr>
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BEGIN_TEXT
  
BEGIN_TEXT
−
Determine the definite integral of
 
  +
−
\( \sin(${a}x) \) from \(a=0\) to \(b=\pi\).
  
  +
Select \{ $CorrectProof->numNeeded \} of the following.
  +
  +
$PAR
  +
\{ $CorrectProof->Print \}
   
 
END_TEXT
  
END_TEXT
−  
 
Context()->normalStrings;
  
Context()->normalStrings;
   
 
# Answer Evaluation
  
# Answer Evaluation
   
−
$showPartialCorrectAnswers = 1;
  
  +
ANS($CorrectProof->cmp);
−
NAMED_ANS( sageAnswer => $ansList->cmp ); # Leave out if no Sage answer.
  
   
   
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</pre>
  
</pre>
 
<td style="background-color:#ddddff;padding:7px;">
  
<td style="background-color:#ddddff;padding:7px;">
−
<p> ${a}x allows you to place the value of $a adjacent to x without a space. $ax would be interpreted as the value of
 
  +
Notice, $CorrectProof->numNeeded returns the actual number of correct statements provided in the first list from above.
−
a variable called ax while $a x would produce a space between the number and x.
  
−
</p>
  
−
<p>
  
−
The list of values computed inside the Sage cell are sageAnswer => $ansList.
  
−
</p>
  
 
</td>
  
</td>
 
</tr>
  
</tr>

Revision as of 16:39, 20 November 2013

Using the Sage Cell Server


This PG code shows how to apply a javascript-enabled collection of drag and drop statements.

Problem Techniques Index

PG problem file Explanation 
DOCUMENT();
loadMacros(
"PGstandard.pl",
"draggableProof.pl",
);

The draggableProof.pl macro is not yet part of the standard WeBWorK distribution. You will need to download the macro file [sage.pl ] FIX THIS LINK and place it in your local macros directory for this to work. 

TEXT(beginproblem());

$CorrectProof = DraggableProof([
"Jason Aubrey",
"Someone better than Jason but less than everyone else",
"John Travis"
],

[
"Don't complain about it",
"\(x^2\)"
],

SourceLabel => "Choose from these",
TargetLabel =>  "Place the people in order of increasing usefulness.",
);

Notice the format is:

[ list of correct statement in order],
[ list of incorrect statements in order], options 

## Lower WeBWorK text
##
## Problem display following the Sage cell
##

Context()->texStrings;

BEGIN_TEXT

Select \{ $CorrectProof->numNeeded \} of the following.

$PAR
\{ $CorrectProof->Print \}

END_TEXT
Context()->normalStrings;

# Answer Evaluation

ANS($CorrectProof->cmp);


ENDDOCUMENT();

Notice, $CorrectProof->numNeeded returns the actual number of correct statements provided in the first list from above.

Templates by Subject Area


Problem Techniques Index


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