FractionAnswer1: Difference between revisions
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<h2>Answer is a Fraction</h2> | <h2>Answer is a Fraction</h2> | ||
[[File:FractionAnswer1.png|300px|thumb|right|Click to enlarge]] | |||
<p style="background-color:#eeeeee;border:black solid 1px;padding:3px;"> | <p style="background-color:#eeeeee;border:black solid 1px;padding:3px;"> | ||
This PG code shows how to write a question in which the answer must be a fraction (rational number). | This PG code shows how to write a question in which the answer must be a fraction (rational number). | ||
</p> | </p> | ||
* Download file: [[File:FractionAnswer1.txt]] (change the file extension from txt to pg when you save it) | |||
* File location in NPL: <code>FortLewis/Authoring/Templates/Algebra/FractionAnswer1.pg</code> | |||
<br clear="all" /> | |||
<p style="text-align:center;"> | <p style="text-align:center;"> | ||
[[SubjectAreaTemplates|Templates by Subject Area]] | [[SubjectAreaTemplates|Templates by Subject Area]] | ||
Revision as of 19:50, 2 December 2010
Answer is a Fraction
This PG code shows how to write a question in which the answer must be a fraction (rational number).
- Download file: File:FractionAnswer1.txt (change the file extension from txt to pg when you save it)
- File location in NPL:
FortLewis/Authoring/Templates/Algebra/FractionAnswer1.pg
| PG problem file | Explanation |
|---|---|
|
Problem tagging: |
|
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "contextFraction.pl", "AnswerFormatHelp.pl", ); TEXT(beginproblem()); |
Initialization: |
Context("Fraction-NoDecimals");
$answer = Compute("3/2");
|
Setup:
The macro Context("Fraction");
Context("Fraction-NoDecimals");
Context("LimitedFraction");
Context("LimitedProperFraction");
For the differences among these, see the POD documentation contextFraction.pl.html |
Context()->texStrings;
BEGIN_TEXT
Simplify \( \displaystyle \frac{6}{4} \).
$BR
$BR
Answer =
\{ ans_rule(20) \}
\{ AnswerFormatHelp("fractions") \}
END_TEXT
Context()->normalStrings;
|
Main Text: |
$showPartialCorrectAnswers = 1; ANS( $answer->cmp( studentsMustReduceFractions=>1, reduceFractions=>1, allowMixedNumbers=>0, ) ); |
Answer Evaluation: There are many context flags that control how fraction answers are checked. See the POD documentation contextFraction.pl.html |
Context()->texStrings;
BEGIN_SOLUTION
${PAR}SOLUTION:${PAR}
Factor and cancel to obtain
\( \displaystyle $answer \)
END_SOLUTION
Context()->normalStrings;
ENDDOCUMENT();
|
Solution: |