Difference between revisions of "Sage in WeBWorK"

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Sage is an open source, online symbolic mathematical system. Details on Sage can be found at http://www.sagemath.org .
   
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For use within WebWork, a special "single-cell" version of Sage is located at http://sagecell.sagemath.org
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<nowiki>
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## Template for calling Sage from within a WebWork pg file
   
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## BEGIN_DESCRIPTION
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## Sample problem embedding Sage in WW
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## END_DESCRIPTION
   
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To pass perl variables to the sage block if you need to from the problem initialization use:
  
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DOCUMENT();
   
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:: TEXT(<<EOF);
  
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loadMacros(
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"PGstandard.pl",
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"MathObjects.pl",
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"sage.pl"
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);
   
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where <<EOF allows interpolation
  
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TEXT(beginproblem());
   
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otherwise use:
  
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Context("Numeric");
   
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:: TEXT(<<'EOF');
  
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####### Answers to check by WeBWorK go in the list below.
   
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where 'EOF' tells perl not to interpolate variables
  
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$ansList = List("(pi)");
   
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15:17aubreyja_yes
  
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####### Possible Upper WeBWorK text
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Context()->texStrings;
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BEGIN_TEXT
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This is where WeBWorK problem text above the sage cell goes.
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END_TEXT
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Context()->normalStrings;
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#### Sage Cell Server
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#### Paste your code below fixing @ and $
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#### Store any answers to send back as a list using the function below.
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#### making certain that is tabbed over correctly
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$SageCode = <<SAGE_CODE;
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var('a')
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a = pi
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record_answer((a))
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SAGE_CODE
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Sage(
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SageCode=>$SageCode,
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AutoEvaluateCell=>'true'
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);
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####### WeBWorK text display following the Sage cell
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Context()->texStrings;
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BEGIN_TEXT
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When you are comfortable with the coefficients that you have chosen, press
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the submit button below.
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END_TEXT
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Context()->normalStrings;
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######### Answer Evaluation
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$showPartialCorrectAnswers = 1;
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NAMED_ANS( sageAnswer => $ansList->cmp );
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ENDDOCUMENT(); # This should be the last executable line in the problem.
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</nowiki>
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The example shows how to pass perl variables from the problem initialization into the sage block.
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:: TEXT(<<SAGE_CODE);
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where << SAGE_CODE without single quotes is necessary. However, the Sage code will not execute if no variables are actually passed in. Since $ and @ within the Sage code are now interpreted by perl, all latex delimiters should be converted from $ signs to \ ( and \ ) pairs. Additionally, any @interact needs to be escaped and written as ~~@interact
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If you are not passing any variables, use:
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:: TEXT(<<'SAGE_CODE');
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where <<'SAGE_CODE' tells perl not to interpret variables. Sage code can then be pasted in verbatim without any need to convert formatting or escaping other characters.
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== See Also ==
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* [[Sage Embedding]]
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[[Category:Developers]]

Latest revision as of 10:42, 24 June 2013

Sage is an open source, online symbolic mathematical system. Details on Sage can be found at http://www.sagemath.org .

For use within WebWork, a special "single-cell" version of Sage is located at http://sagecell.sagemath.org 

## Template for calling Sage from within a WebWork pg file

## BEGIN_DESCRIPTION
## Sample problem embedding Sage in WW
## END_DESCRIPTION

DOCUMENT();

loadMacros(
"PGstandard.pl",
"MathObjects.pl",
"sage.pl"
);

TEXT(beginproblem());

Context("Numeric");

#######   Answers to check by WeBWorK go in the list below.

$ansList = List("(pi)");

#######   Possible Upper WeBWorK text

Context()->texStrings;
BEGIN_TEXT

This is where WeBWorK problem text above the sage cell goes.

END_TEXT
Context()->normalStrings;

####                   Sage Cell Server
####  Paste your code below fixing @ and $
####  Store any answers to send back as a list using the function below.
####  making certain that is tabbed over correctly

$SageCode = <<SAGE_CODE;

var('a')
a = pi
record_answer((a))

SAGE_CODE

Sage(
  SageCode=>$SageCode,
  AutoEvaluateCell=>'true'
);


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

Context()->texStrings;
BEGIN_TEXT

When you are comfortable with the coefficients that you have chosen, press
the submit button below.

END_TEXT
Context()->normalStrings;

#########  Answer Evaluation

$showPartialCorrectAnswers = 1;
NAMED_ANS( sageAnswer => $ansList->cmp   );

ENDDOCUMENT();        # This should be the last executable line in the problem.

The example shows how to pass perl variables from the problem initialization into the sage block.

TEXT(<<SAGE_CODE);

where << SAGE_CODE without single quotes is necessary. However, the Sage code will not execute if no variables are actually passed in. Since $ and @ within the Sage code are now interpreted by perl, all latex delimiters should be converted from $ signs to \ ( and \ ) pairs. Additionally, any @interact needs to be escaped and written as ~~@interact

If you are not passing any variables, use:

TEXT(<<'SAGE_CODE');

where <<'SAGE_CODE' tells perl not to interpret variables. Sage code can then be pasted in verbatim without any need to convert formatting or escaping other characters.

See Also

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