Difference between revisions of "AnswerIsSolutionToEquation"
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Revision as of 14:58, 6 November 2010
Answer is any Solution to an Equation
This PG code shows how to check student answers that can be any point satisfying an equation.
PG problem file | Explanation |
---|---|
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "parserSolutionFor.pl", ); TEXT(beginproblem()); |
Initialization:
We need to include the macros file |
Context("Vector")->variables->are(x=>'Real',y=>'Real'); $f = SolutionFor("x^2 = cos(y)","(1,0)"); #$f = SolutionFor("x^2 - y = 0",[2,4]); #$f = SolutionFor("x^2 - y = 0",Point(4,2),vars=>['y','x']); |
Setup:
The routine |
Context()->texStrings; BEGIN_TEXT A solution to \($f->{f}\) is \((x,y)\) = \{ans_rule(30)\}. END_TEXT Context()->normalStrings; |
Main Text:
We can use |
$showPartialCorrectAnswers = 1; ANS( $f->cmp() ); ENDDOCUMENT(); |
Answer Evaluation: As is the answer. |
- POD documentation: parserSolutionFor.pl.html
- PG macro: parserSolutionFor.pl