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Revision 4997 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Mon Jun 11 18:16:40 2007 UTC (12 years, 8 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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Modified Wed Jan 25 12:47:17 2006 UTC (14 years 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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Modified Sat Dec 31 02:41:16 2005 UTC (14 years, 1 month 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

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Modified Thu Sep 29 22:08:43 2005 UTC (14 years, 4 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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Modified Wed Sep 28 20:40:20 2005 UTC (14 years, 4 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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Modified Wed Sep 28 11:11:29 2005 UTC (14 years, 4 months ago) by dpvc
File length: 2523 byte(s)
Diff to previous 2730
Fixed typo in comments.

Revision 2730 - (view) (download) (as text) (annotate) - [select for diffs]
Added Sat Sep 4 20:31:55 2004 UTC (15 years, 5 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.

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