Difference between revisions of "PGLabs"
Jump to navigation
Jump to search
| (12 intermediate revisions by 3 users not shown) | |||
| Line 1: | Line 1: | ||
| − | ==PG Labs== |
||
On-line labs for rendering of PG code. These two |
On-line labs for rendering of PG code. These two |
||
labs allow you to experiment with PG syntax. |
labs allow you to experiment with PG syntax. |
||
| Line 6: | Line 5: | ||
Click on this link to go to PG calculator: |
Click on this link to go to PG calculator: |
||
| − | + | https://demo.webwork.rochester.edu/webwork2/wikiExamples/MathObjectsLabs2/2/?login_practice_user=true |
|
For example you could enter the code fragment below into the calculator: |
For example you could enter the code fragment below into the calculator: |
||
| − | + | Context("Numeric"); |
|
| − | + | $f = Compute("x^2-3x+5"); |
|
| − | + | $fp = $f->D; # calculate the derivative |
|
| − | checkAnswer($fp, "2x-3"); # the first argument is a MathObject, the second the student's answer string |
+ | checkAnswer($fp, "2x-3"); # the first argument is a MathObject, the second the student's answer string |
| − | |||
* On the last line <code>TEXT</code> prints the results of (reading from left to right) |
* On the last line <code>TEXT</code> prints the results of (reading from left to right) |
||
| − | ** Constructing the AnswerEvaluator for the contents of the Formula $fp |
+ | ** Constructing the AnswerEvaluator for the contents of the Formula <code>$fp</code> |
| − | ** Evaluating the string "2x-3" using this AnswerEvaluator to produce an AnswerHash |
+ | ** Evaluating the string <code>"2x-3"</code> using this AnswerEvaluator to produce an AnswerHash |
| − | ** Recursively representing the contents of the AnswerHash in a nice table |
+ | ** Recursively representing the contents of the AnswerHash in a nice table. |
| − | + | ||
| − | + | <code>checkAnswer()</code> inserts its arguments into a more complicated command. e.g. last line above becomes: |
|
| + | |||
| + | TEXT($fp->cmp->evaluate("2x-3")->pretty_print); |
||
=== PGML markup lab === |
=== PGML markup lab === |
||
| − | * Experiment with the new PG markup language syntax (PGML) which simplifies the graphical layout of the mathematics question. This is not yet available in the rel-2-4-patches release of WeBWorK but can be used if you update the pg code to HEAD. This is fairly safe since no modifications of configuration files are needed and existing problems are not likely to be affected. (The code base on hosted2.webwork.rochester.edu/webwork2 where many WeBWorK courses are hosted has been updated to HEAD and will run PGML.) |
||
| + | * Experiment with the new PG markup language syntax (PGML) which simplifies the graphical layout of the mathematics question. |
||
| + | |||
| + | https://courses1.webwork.maa.org/webwork2/cervone_course/PGML?login_practice_user=true |
||
| − | http://hosted2.webwork.rochester.edu/webwork2/cervone_course/PGML?login_practice_user=true |
||
| + | Several dozen questions illustrating the use of PGML: |
||
| − | Homework sets using PGML |
||
| + | https://courses1.webwork.maa.org/webwork2/cervone_course/PGML-examples/?login_practice_user=true |
||
| − | http://hosted2.webwork.rochester.edu/webwork2/cervone_course/PGML-examples/?login_practice_user=true |
||
| + | To use these commands in your own courses you will need to include <code>PGML.pl</code> in your <code>loadMacros()</code> segment. Start the display of your problem text with <code>BEGIN_PGML</code> which expands to |
||
| − | To use these commands in your own courses you will need a recent version of PG. (You can update by changing |
||
| + | TEXT(PGML::Format2(<<'END_PGML')); |
||
| − | to the /opt/pg directory and typing |
||
| − | cvs update -A |
||
| − | which will get you the latest version of all of the PG code |
||
| − | You can move back to the more stable code base by typing |
||
| − | cvs update -r rel-2-4-patches |
||
| − | Include PGML.pm in your loadMacros() segment. |
||
| + | and end with <code>END_PGML</code>. These are used instead of the usual <code>BEGIN_TEXT/END_TEXT</code> construction. You can use both <code>BEGIN_TEXT/END_TEXT</code> and <code>BEGIN_PGML/END_PGML</code> in the same problem, if you wish. See [[SampleProblem4]] for an example (with explanation) that uses PGML. |
||
| − | Start the display of your problem text with BEGIN_PGML which expands to |
||
| − | TEXT(PGML::Format2(<<'END_PGML')); |
||
| − | and end with END_PGML |
||
| − | These are used instead of the usual BEGIN_TEXT/END_TEXT construct. You can use both BEGIN_TEXT/END_TEXT and BEGIN_PGML/END_PGML in the same question. |
||
[[Category:Authors]] |
[[Category:Authors]] |
||
Latest revision as of 20:01, 26 February 2020
On-line labs for rendering of PG code. These two labs allow you to experiment with PG syntax.
Test your PG code fragments
Click on this link to go to PG calculator:
For example you could enter the code fragment below into the calculator:
Context("Numeric");
$f = Compute("x^2-3x+5");
$fp = $f->D; # calculate the derivative
checkAnswer($fp, "2x-3"); # the first argument is a MathObject, the second the student's answer string
- On the last line
TEXTprints the results of (reading from left to right)- Constructing the AnswerEvaluator for the contents of the Formula
$fp - Evaluating the string
"2x-3"using this AnswerEvaluator to produce an AnswerHash - Recursively representing the contents of the AnswerHash in a nice table.
- Constructing the AnswerEvaluator for the contents of the Formula
checkAnswer() inserts its arguments into a more complicated command. e.g. last line above becomes:
TEXT($fp->cmp->evaluate("2x-3")->pretty_print);
PGML markup lab
- Experiment with the new PG markup language syntax (PGML) which simplifies the graphical layout of the mathematics question.
https://courses1.webwork.maa.org/webwork2/cervone_course/PGML?login_practice_user=true
Several dozen questions illustrating the use of PGML:
https://courses1.webwork.maa.org/webwork2/cervone_course/PGML-examples/?login_practice_user=true
To use these commands in your own courses you will need to include PGML.pl in your loadMacros() segment. Start the display of your problem text with BEGIN_PGML which expands to
TEXT(PGML::Format2(<<'END_PGML'));
and end with END_PGML. These are used instead of the usual BEGIN_TEXT/END_TEXT construction. You can use both BEGIN_TEXT/END_TEXT and BEGIN_PGML/END_PGML in the same problem, if you wish. See SampleProblem4 for an example (with explanation) that uses PGML.
