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Revision 3670 - (view) (download) (as text) (annotate) - [select for diffs]
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, 4 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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