Difference between revisions of "EquationDefiningFunction1"

From WeBWorK_wiki
Jump to navigation Jump to search
(Created page with '<h2>Answer is a Linear Equation</h2> <p style="background-color:#eeeeee;border:black solid 1px;padding:3px;"> This PG code shows how to check an answer that is a linear equation…')
 
(add historical tag and give links to newer problems.)
 
(17 intermediate revisions by 3 users not shown)
Line 1: Line 1:
−
<h2>Answer is a Linear Equation</h2>
  
  +
{{historical}}
   
−
<p style="background-color:#eeeeee;border:black solid 1px;padding:3px;">
  
  +
<p style="font-size: 120%;font-weight:bold">This problem has been replaced with [https://openwebwork.github.io/pg-docs/sample-problems/Algebra/EquationDefiningFunction.html a newer version of this problem]</p>
−
This PG code shows how to check an answer that is a linear equation.
  
  +
−
<ul>
  
  +
−
<li>Download file: [[File:LinearEquationAnswer1.txt]] (change the file extension from txt to pg)</li>
  
  +
<h2>Answer is an Equation Defining a Function</h2>
−
<li>File location in NPL: <code>NationalProblemLibrary/FortLewis/Authoring/Templates/Algebra/LinearEquationAnswer1.pg</code></li>
  
  +
−
</ul>
  
  +
[[File:EquationDefiningFunction1.png|300px|thumb|right|Click to enlarge]]
  +
<p style="background-color:#f9f9f9;border:black solid 1px;padding:3px;">
  +
This PG code shows how to check student answers that are equations that define functions. If an equation defines a function, it is much more reliable to use the this method of answer evaluation (via <code>parserAssignment.pl</code>) than the implicit equation method (via <code>parserImplicitEquation.pl</code>)
 
</p>
  
</p>
  +
* File location in OPL: [https://github.com/openwebwork/webwork-open-problem-library/blob/master/OpenProblemLibrary/FortLewis/Authoring/Templates/Algebra/EquationDefiningFunction1.pg FortLewis/Authoring/Templates/Algebra/EquationDefiningFunction1.pg]
  +
* PGML location in OPL: [https://github.com/openwebwork/webwork-open-problem-library/blob/master/OpenProblemLibrary/FortLewis/Authoring/Templates/Algebra/EquationDefiningFunction1_PGML.pg FortLewis/Authoring/Templates/Algebra/EquationDefiningFunction1_PGML.pg]
   
  +
<br clear="all" />
 
<p style="text-align:center;">
  
<p style="text-align:center;">
 
[[SubjectAreaTemplates|Templates by Subject Area]]
  
[[SubjectAreaTemplates|Templates by Subject Area]]
Line 41: Line 46:
 
<pre>
  
<pre>
 
DOCUMENT();
  
DOCUMENT();
  +
 
loadMacros(
  
loadMacros(
 
"PGstandard.pl",
  
"PGstandard.pl",
Line 46: Line 52:
 
"parserAssignment.pl",
  
"parserAssignment.pl",
 
);
  
);
  +
 
TEXT(beginproblem());
  
TEXT(beginproblem());
 
</pre>
  
</pre>
Line 67: Line 74:
   
 
$eqn = Formula("y=5x+2");
  
$eqn = Formula("y=5x+2");
−
$f = Formula("f(x)=5x+2");
 +
$fun = Formula("f(x)=3x^2+2x");
 
</pre>
  
</pre>
 
</td>
  
</td>
Line 73: Line 80:
 
<p>
  
<p>
 
<b>Setup:</b>
 
<b>Setup:</b>
−
We must allow assignment, and declare any function names we wish to use. For more details and examples in other MathObjects contexts, see [http://webwork.maa.org/doc/cvs/pg_CURRENT/macros/parserAssignment.pl.html parserAssignment.pl.html]
 +
We must allow assignment, and declare any function names we wish to use. For more details and examples in other MathObjects contexts, see [http://webwork.maa.org/pod/pg/macros/parserAssignment.html parserAssignment.pl]
 
</p>
  
</p>
 
</td>
  
</td>
Line 83: Line 90:
 
<td style="background-color:#ffdddd;border:black 1px dashed;">
  
<td style="background-color:#ffdddd;border:black 1px dashed;">
 
<pre>
  
<pre>
  +
Context()->texStrings;
 
BEGIN_TEXT
  
BEGIN_TEXT
 
Enter \( y = 5x+2 \) \{ ans_rule(20) \}
  
Enter \( y = 5x+2 \) \{ ans_rule(20) \}
 
$BR
  
$BR
−
Enter \( f(x) = 5x+2 \) \{ ans_rule(20) \}
  
  +
$BR
  +
Enter \( f(x) = 3x^2+2x \) \{ ans_rule(20) \}
 
END_TEXT
  
END_TEXT
  +
Context()->normalStrings;
 
</pre>
  
</pre>
 
<td style="background-color:#ffcccc;padding:7px;">
  
<td style="background-color:#ffcccc;padding:7px;">
Line 102: Line 112:
 
<td style="background-color:#eeddff;border:black 1px dashed;">
  
<td style="background-color:#eeddff;border:black 1px dashed;">
 
<pre>
  
<pre>
  +
$showPartialCorrectAnswers = 1;
  +
 
ANS( $eqn->cmp() );
  
ANS( $eqn->cmp() );
−
ANS( $f->cmp() );
 +
ANS( $fun->cmp() );
−  
−
ENDDOCUMENT();
  
 
</pre>
  
</pre>
 
<td style="background-color:#eeccff;padding:7px;">
  
<td style="background-color:#eeccff;padding:7px;">
Line 146: Line 158:
   
 
[[Category:Top]]
  
[[Category:Top]]
−
[[Category:Authors]]
 +
[[Category:Sample Problems]]
  +
[[Category:Subject Area Templates]]

Latest revision as of 05:42, 18 July 2023

This article has been retained as a historical document. It is not up-to-date and the formatting may be lacking. Use the information herein with caution.

This problem has been replaced with a newer version of this problem


Answer is an Equation Defining a Function

Click to enlarge

This PG code shows how to check student answers that are equations that define functions. If an equation defines a function, it is much more reliable to use the this method of answer evaluation (via parserAssignment.pl) than the implicit equation method (via parserImplicitEquation.pl)


Templates by Subject Area

PG problem file Explanation

Problem tagging data

Problem tagging: 

DOCUMENT();

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

TEXT(beginproblem());

Initialization: We need to include the macro file parserAssignment.pl. 

Context("Numeric")->variables->are(x=>"Real",y=>"Real");
parser::Assignment->Allow;
parser::Assignment->Function("f");

$eqn = Formula("y=5x+2");
$fun = Formula("f(x)=3x^2+2x");

Setup: We must allow assignment, and declare any function names we wish to use. For more details and examples in other MathObjects contexts, see parserAssignment.pl 

Context()->texStrings;
BEGIN_TEXT
Enter \( y = 5x+2 \) \{ ans_rule(20) \}
$BR
$BR
Enter \( f(x) = 3x^2+2x \) \{ ans_rule(20) \}
END_TEXT
Context()->normalStrings;

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

$showPartialCorrectAnswers = 1;

ANS( $eqn->cmp() );
ANS( $fun->cmp() );

Answer Evaluation: As is the answer. 


Context()->texStrings;
BEGIN_SOLUTION
${PAR}SOLUTION:${PAR}
Solution explanation goes here.
END_SOLUTION
Context()->normalStrings;

COMMENT('MathObject version.');

ENDDOCUMENT();

Solution:


Templates by Subject Area

Retrieved from "https://webwork.maa.org/mediawiki_new/index.php?title=EquationDefiningFunction1&oldid=23754"