# 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

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