PGLabs

PG Labs

On-line labs for rendering of PG code. These two labs allow you to experiment with PG syntax.

Test PG code fragments

http://hosted2.webwork.rochester.edu/webwork2/wikiExamples/MathObjectsLabs2/2/?login_practice_user=true

For example:

Context("Numeric");
$f = Compute("x^2-3x+5");
$fp = $f->D; # calculate the derivative
TEXT($fp->cmp->evaluate("2x-3")->pretty_print );

• On the last line TEXT prints the results of (reading from left to right)
  • Constructing the AnswerEvaluator for the contents of the Formula $fp
  • Evaluating the string "2x-3" using this AnswerEvaluator to produce an AnswerHash
  • Recursively representing the contents of the AnswerHash in a nice table

Experimental PGML markup lab

• Experiment with the new PG markup language syntax (PGML)] which simplifies the graphical layout

of the mathematics question. This is still under development and can't yet be used in standard PG problems.

http://hosted2.webwork.rochester.edu/webwork2/cervone_course/PGML?login_practice_user=true