Log of /trunk/pg/macros/parserDifferenceQuotient.pl

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Revision 5392 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 19 21:50:23 2007 UTC (5 years, 9 months ago) by dpvc
File length: 2630 byte(s)
Diff to previous 5373

Move the context creation to the _init routine so that modifications
to main:: occur at initialization time, not when the file is loaded.

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Revision 5373 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 19 02:01:57 2007 UTC (5 years, 9 months ago) by dpvc
File length: 2526 byte(s)
Diff to previous 5371

Normalized comments and headers to that they will format their POD
documentation properly.  (I know that the POD processing was supposed
to strip off the initial #, but that doesn't seem to happen, so I've
added a space throughout.)

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Revision 5371 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sun Aug 19 00:56:25 2007 UTC (5 years, 9 months ago) by dpvc
File length: 2495 byte(s)
Diff to previous 5059

Changed Parser.pl to MathObjects.pl

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Revision 5059 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Jun 28 20:17:12 2007 UTC (5 years, 10 months ago) by dpvc
File length: 2490 byte(s)
Diff to previous 4997

Updated to use new context methods.

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Revision 4997 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Mon Jun 11 18:16:40 2007 UTC (5 years, 11 months ago) by gage
File length: 2526 byte(s)
Diff to previous 3971

Fixing docementation so that it can be read from the web.

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Revision 3971 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Jan 25 12:47:17 2006 UTC (7 years, 4 months ago) by dpvc
File length: 2499 byte(s)
Diff to previous 3867

Forward port to HEAD (Prevent "unquoted dx may conflict with future
usage" messages.)

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Revision 3867 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Sat Dec 31 02:41:16 2005 UTC (7 years, 4 months ago) by dpvc
File length: 2491 byte(s)
Diff to previous 3670

Now that the parser accepts multi-character variables, there is no
need for the special treatment of dx.  Also, allow the context to
specify the default variable to use, and if not available, take the
LAST varaible alphabetically, not the first.  (x is more likely to be
last, and the author might have added dx as a variable so that it will
not cause an error if used in other answers in the problem, for
example.)

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Revision 3670 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Sep 29 22:08:43 2005 UTC (7 years, 7 months ago) by dpvc
File length: 2629 byte(s)
Diff to previous 3662

Only add the 'dx' variable if it isn't already in the context.

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Revision 3662 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Sep 28 20:40:20 2005 UTC (7 years, 7 months ago) by dpvc
File length: 2574 byte(s)
Diff to previous 3661

Fixed a bug where if you specified a variable other than dx, the
division by zero check didn't work properly.

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Revision 3661 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Wed Sep 28 11:11:29 2005 UTC (7 years, 7 months ago) by dpvc
File length: 2523 byte(s)
Diff to previous 2730

Fixed typo in comments.

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Revision 2730 - (view) (download) (as text) (annotate) - [select for diffs]
Added Sat Sep 4 20:31:55 2004 UTC (8 years, 8 months ago) by dpvc
File length: 2521 byte(s)

This file defines a DifferenceQuotient class that provides an answer
checker for difference quotients.  These include a variable "dx" (or a
user specified one) that can be used as part of the formula, and the
student must simplify the answer at least enough to remove the dx from
the denominator.