Difference between revisions of "PeriodicAnswers1"
Jump to navigation
Jump to search
Line 123: | Line 123: | ||
Context()->texStrings; |
Context()->texStrings; |
||
BEGIN_SOLUTION |
BEGIN_SOLUTION |
||
+ | The cosine of an angle is zero when |
||
+ | the angle is an integer multiple of \( \pi \). |
||
END_SOLUTION |
END_SOLUTION |
||
Context()->normalStrings; |
Context()->normalStrings; |
Revision as of 18:03, 30 November 2010
Periodic Answers
This PG code shows how to check student answers that are periodic.
File location: NationalProblemLibrary/FortLewis/Authoring/Templates/Trig/PeriodicAnswers1.pg
PG problem file | Explanation |
---|---|
Problem tagging: |
|
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "AnswerFormatHelp.pl", ); TEXT(beginproblem()); |
Initialization: |
Context("Numeric"); $answer = Real("pi/2")->with(period=>pi); |
Setup: This is self-explanatory. |
Context()->texStrings; BEGIN_TEXT Enter a solution to \( \cos(\theta) = 0 \). $BR $BR \( \theta = \) \{ ans_rule(10) \} \{ AnswerFormatHelp("angles") \} END_TEXT Context()->normalStrings; |
Main Text: |
$showPartialCorrectAnswers = 1; ANS( $answer->cmp() ); |
Answer Evaluation: |
Context()->texStrings; BEGIN_SOLUTION The cosine of an angle is zero when the angle is an integer multiple of \( \pi \). END_SOLUTION Context()->normalStrings; ENDDOCUMENT(); |
Solution: |