FormattingCorrectAnswers: Equations

Formatting Correct Answers: Equations: PG Code Snippet

This code snippet shows the essential PG code to check student answers that are equations. Note that these are insertions, not a complete PG file. This code will have to be incorporated into the problem file on which you are working.

Problem Techniques Index

PG problem file	Explanation
loadMacros("parserImplicitPlane.pl");	We don't have to change the tagging and documentation section of the problem file. In the initialization section, we need to include the macros file parserImplicitPlane.pl.
$dfx = 3; $yintercept = 4; Context("ImplicitPlane"); Context()->variables->remove("z"); $h = ImplicitPlane("y = $dfx x + $yintercept");	In the problem set-up section of the file, we specify that the Context should be ......, and define the answer to be a formula. Notes: on using this and related Contexts.
BEGIN_TEXT ...... question text ...... END_TEXT	The problem text section of the file is as we'd expect.
ANS( $expr->cmp() );	As is the answer.

Problem Techniques Index