Difference between revisions of "MatrixCustomAnswerChecker1"
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+ | <p style="font-size: 120%;font-weight:bold">This problem has been replaced with [https://openwebwork.github.io/pg-docs/sample-problems/LinearAlgebra/MatrixCustomAnswerChecker.html a newer version of this problem]</p> |
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<h2>Matrices and Custom Answer Checkers</h2> |
<h2>Matrices and Custom Answer Checkers</h2> |
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Latest revision as of 06:25, 18 July 2023
This problem has been replaced with a newer version of this problem
Matrices and Custom Answer Checkers
This PG code shows how to use a multianswer answer checker to evaluate an open-ended question about matrices.
- File location in OPL: FortLewis/Authoring/Templates/LinAlg/MatrixCustomAnswerChecker1.pg
- PGML location in OPL: FortLewis/Authoring/Templates/LinAlg/MatrixCustomAnswerChecker1_PGML.pg
PG problem file | Explanation |
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Problem tagging: |
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DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "parserMultiAnswer.pl", "AnswerFormatHelp.pl", "PGcourse.pl", ); $showPartialCorrectAnswers = 0; TEXT(beginproblem()); |
Initialization: |
Context('Matrix'); $A = Matrix([[1,1],[0,1]]); $B = Matrix([[1,0],[1,1]]); $multians = MultiAnswer($A, $B)->with( singleResult => 1, checker => sub { my ( $correct, $student, $answerHash ) = @_; my @s = @{$student}; $s0 = Matrix($s[0]); $s1 = Matrix($s[1]); return $s0 * $s1 != $s1 * $s0; } ); |
Setup:
Construct two matrices |
Context()->texStrings; BEGIN_TEXT Give an example of two \( 2 \times 2 \) matrices \( A \) and \( B \) such that \( AB \ne BA \). $BR $BR \( A = \) \{ $multians->ans_array(5) \} $BR $BR \( B = \) \{ $multians->ans_array(5) \} END_TEXT Context()->normalStrings; |
Main Text:
Make sure that both answer arrays are called as methods on the |
install_problem_grader(~~&std_problem_grader); ANS( $multians->cmp() ); COMMENT('MathObject version.'); ENDDOCUMENT(); |
Answer Evaluation: |