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Sticky Revision:

Revision 385 - Directory Listing
Modified Wed Jun 19 02:36:03 2002 UTC (17 years, 5 months ago) by gage
Moved where the my variables *-format are defined.

Revision 384 - Directory Listing
Modified Wed Jun 19 01:34:24 2002 UTC (17 years, 5 months ago) by gage
Added my ($rformat,$theta_format); to the polar subroutine

Revision 333 - Directory Listing
Modified Fri May 31 18:21:35 2002 UTC (17 years, 5 months ago) by apizer
Fixed bug reported by Danny Glin by removing all $ and @ from student answers before using them as sticky
answers.

Revision 327 - Directory Listing
Modified Thu May 30 21:52:07 2002 UTC (17 years, 5 months ago) by gage
Having much trouble with the exportation of functions from Complex1.

Maybe this will do it.

Revision 326 - Directory Listing
Modified Thu May 30 20:43:55 2002 UTC (17 years, 5 months ago) by gage
Sometimes it seems like the committed file doesn't get modified??

Revision 325 - Directory Listing
Modified Thu May 30 20:41:08 2002 UTC (17 years, 5 months ago) by gage
Fixed a misplaced  parens.

Revision 321 - Directory Listing
Modified Thu May 30 19:21:16 2002 UTC (17 years, 5 months ago) by gage
Fixed bug in PGcomplexmacros.pl having to do with the lack of a
=cut line in the pod documentation.

The loadMacros eval doesn't fail gracefully when this kind of mistake
occurs.  More work needs to be done on loadMacros.

Also changed the _PGcomplexmacros_init subroutine to include the
exporting of variables from Complex.

I think this is what it was supposed to do in any case, but perhaps not.
When using the forking process it was only necessary to export the
variables in the parent.

Revision 312 - Directory Listing
Modified Tue May 28 17:47:07 2002 UTC (17 years, 5 months ago) by apizer
 - changed reduce so that it would always leave the denominator
   positive (so reducing 6/-10 gives -3/5)
 - added documentation line for reduce
 - added method pow which takes an integer argument, and returns the
   fraction raised to that power (throwing warnings for indeterminant
   forms or division by 0)
 - added doc line for pow

Revision 309 - Directory Listing
Modified Fri May 24 15:54:55 2002 UTC (17 years, 6 months ago) by apizer
Corrected a minor typo in a comment. Mostly wanted to check how log messages appear. There was a problem with
the previous log message that was caused by terminal emulation on my PC.

Revision 308 - Directory Listing
Modified Fri May 24 15:42:28 2002 UTC (17 years, 6 months ago) by apizer
beginning with `CVS:' are removed automatically CVS:  CVS: Committing in . CVS:  CVS: Modified Files: CVS:
Fraction.pm CVS: ----------------------------------------------------------------------
This is John Jones updated version using \ensuremath in place of \( ...\) and including a print_inline
command.

Revision 307 - Directory Listing
Modified Fri May 24 00:31:55 2002 UTC (17 years, 6 months ago) by gage
Continuing to add documentation to AnswerHash
AnswerHas is largely described.  A general description of the
filters is also done.  The AnswerEvaluator object needs much
more documentation.

Revision 293 - Directory Listing
Modified Thu May 23 13:52:02 2002 UTC (17 years, 6 months ago) by gage
Adding documentation

Revision 275 - Directory Listing
Modified Mon May 13 20:45:47 2002 UTC (17 years, 6 months ago) by apizer
removed automatically CVS:  CVS: Modified Files: CVS:  PGanswermacros.pl CVS:
----------------------------------------------------------------------
Corrected bug involvinf use of tolerance in num_cmp.  Also added warning if incompatible paramaters are pass3ed to num
compare.

Revision 274 - Directory Listing
Modified Mon May 13 18:40:56 2002 UTC (17 years, 6 months ago) by gage
Modified a problem involving the option "tolerance" in num_cmp.

Revision 273 - Directory Listing
Modified Fri May 10 21:29:05 2002 UTC (17 years, 6 months ago) by voloshin
in normal_prob, increased the level with which it calls romberg to 8, to improve the estimates of probabilities.

Revision 272 - Directory Listing
Modified Mon Apr 1 16:44:03 2002 UTC (17 years, 7 months ago) by apizer
I found a small error in PGpolynomials.  Version 1.1.2 is attached.  I was
missing a '+' in the stringification routine.

Revision 271 - Directory Listing
Modified Tue Mar 26 19:49:10 2002 UTC (17 years, 7 months ago) by apizer
Macros for doing operations on polynomials contributed by Mark Schmitt

Revision 265 - Directory Listing
Modified Fri Dec 21 15:57:58 2001 UTC (17 years, 11 months ago) by apizer
`CVS:' are removed automatically CVS:  CVS: Modified Files: CVS:  PGbasicmacros.pl CVS:
----------------------------------------------------------------------
Fixed infinite loop in NAMED_ANS_RADIO_OPTION

Revision 264 - Directory Listing
Modified Fri Dec 21 04:14:11 2001 UTC (17 years, 11 months ago) by gage
Modified documentation.  Also added labeled_ans_rule(name, width) which is a synonym
for NAMED_ANS_RULE(name, width) except that width is given a default of 20 if it is omitted.

Revision 263 - Directory Listing
Modified Fri Dec 21 04:12:34 2001 UTC (17 years, 11 months ago) by gage
Modifified documentation.  Added LABELED_ANS as a synonym for NAMED_ANS.  Somehow
it seems to sound better.  The original subroutines remain of course.

Revision 262 - Directory Listing
Modified Fri Dec 21 04:10:11 2001 UTC (17 years, 11 months ago) by gage
Made modifications in the evaluate method of AnswerEvaluator which allow the
answer evaluators to be called twice.  (Specifically the error flags are initialized
at the beginning of each call to evaluate).

Revision 237 - Directory Listing
Modified Fri Oct 19 15:59:44 2001 UTC (18 years, 1 month ago) by apizer
Fixed bug in std_num_cmp (and 7 other related answer evaluators) so that
relative tolerances can be set

Revision 227 - Directory Listing
Modified Tue Oct 2 13:55:21 2001 UTC (18 years, 1 month ago) by apizer
Only replace e by E if the expression looks like a number.  This could be made
more robust.

Revision 219 - Directory Listing
Modified Mon Sep 24 16:52:17 2001 UTC (18 years, 1 month ago) by gage
Added documentation and _PG....macros_int functions to these files.

In PGcomplexmacros.pl I removed the automatic exportation of log() from
PGcomplexmacros.pl since
this (and sqrt() ) cause conflicts with CORE::log() and CORE::sqrt().
-- Warnings of the form "Ambiguous call to   ..... resolved in favor of
CORE::... " etc.

The functions can always be accessed by Complex::log() and Complex::sqrt()
when needed for complex numbers.

There may be a more sophisticated method of exporting these calls which
would avoid the warnings and remain transparent both to those who are
using complex numbers and those who are not.  If anyone has any ideas they
will be welcome.  The code to modify is at the top of the
PGcomplexmacros.pl file inside the _PGcomplexmacros_init subroutine.

Revision 211 - Directory Listing
Modified Thu Sep 20 00:24:13 2001 UTC (18 years, 2 months ago) by apizer
changed BCENTER and ECENTER as per Mike's suggestion.

Revision 210 - Directory Listing
Modified Wed Sep 19 20:51:47 2001 UTC (18 years, 2 months ago) by apizer
Fixed bug so that 0/3 works.  Communucated by John Jones.

Revision 209 - Directory Listing
Modified Wed Sep 19 20:49:56 2001 UTC (18 years, 2 months ago) by apizer
Fixed bug in gcd so that e.g. gcd(3,0) works.  Communicated by John Jones.

Revision 208 - Directory Listing
Modified Wed Sep 19 20:32:53 2001 UTC (18 years, 2 months ago) by apizer
added italic and center macros

Revision 206 - Directory Listing
Modified Fri Sep 14 20:21:52 2001 UTC (18 years, 2 months ago) by apizer
added anstext_non_anonymous, a non anonymous version of anstext

Revision 200 - Directory Listing
Modified Mon Sep 10 18:18:37 2001 UTC (18 years, 2 months ago) by gage
Made small change to NUM_CMP which insures that
 $correctVal is defined when the answer is a string.

Revision 199 - Directory Listing
Modified Mon Sep 10 17:07:36 2001 UTC (18 years, 2 months ago) by gage
Made the check within dangerousMacros.pl which insures that DOCUMENT()
comes before loadMacros() in a problem, more robust.

the new code checks this formatting somewhat more rigorously and gives a
clearer error message about what is wrong.  The check is still not foolproof.

Revision 198 - Directory Listing
Modified Mon Sep 10 17:05:20 2001 UTC (18 years, 2 months ago) by gage
removed unneeded comments and cleaned up the code formatting.

Revision 197 - Directory Listing
Modified Mon Sep 10 17:03:33 2001 UTC (18 years, 2 months ago) by gage
Removed commented out lines which are no longer needed.

Revision 195 - Directory Listing
Modified Sat Sep 8 13:34:03 2001 UTC (18 years, 2 months ago) by apizer
explicitly delete CAPA options 'sig', 'tries', 'wgt' which are
meaningless to WeBWorK

Revision 194 - Directory Listing
Modified Sat Sep 8 04:51:25 2001 UTC (18 years, 2 months ago) by gage
Fixed a bug in CAPA_ans which called the old style numerical compare
and string compare functions (including some useless parameters)

This will fix several errors that have arisen in CAPA problems, but
perhaps not all of them.

Revision 193 - Directory Listing
Modified Sat Sep 8 04:49:44 2001 UTC (18 years, 2 months ago) by gage
Fixed a bug which prevented the unit mol from working.

Revision 189 - Directory Listing
Modified Tue Sep 4 22:23:09 2001 UTC (18 years, 2 months ago) by gage
Added a change to loadMacros that allows for macro files that
end in .pg

Revision 188 - Directory Listing
Modified Tue Sep 4 16:40:58 2001 UTC (18 years, 2 months ago) by gage
Modifications in these two files make questions whose answer blanks hve
the same names behave properly.

The new versions of CGI seem to return such answers as a reference to an array.
Earlier versions returned the answrs as a string with \0 separators.

With the new changes the AnswerEvaluator get_student_answer subroutine and
the NAMED_ANS_RULE in PGbasicmacros.pl will handle either a null separated
string or an answer array when dealing with vector answers.

This should correct some difficulties experienced in the linear algebra
questions.  More testing needs to be done.

Revision 187 - Directory Listing
Modified Fri Aug 31 19:29:51 2001 UTC (18 years, 2 months ago) by sh002i
not new anymore!

Revision 182 - Directory Listing
Modified Fri Aug 31 17:13:40 2001 UTC (18 years, 2 months ago) by sh002i
Got rid of a die that I put into makeL2H for debugging.

Revision 178 - Directory Listing
Modified Fri Aug 31 16:06:54 2001 UTC (18 years, 2 months ago) by sh002i
makeL2H now appends the contents of $Global::externalLaTeX2HTMLSupportPath
to $ENV{PATH} before calling latex2html. this is kinda hackish, but it
works. perhaps instead of this, we should set the path globally to
something like '/bin:/usr/bin:/usr/local/bin'. (see the email i'm about
to send.)

Revision 173 - Directory Listing
Modified Thu Aug 30 12:04:00 2001 UTC (18 years, 2 months ago) by gage
Protect against possibility that {debug} is not defined
in AnswerEvaluator.

Revision 172 - Directory Listing
Modified Thu Aug 30 03:03:19 2001 UTC (18 years, 2 months ago) by gage
Made sure that num_cmp, fun_cmp and str_cmp return an
answer evaluator when used in scalar context.  In other words

$ans_eval = num_cmp(234);

will now work as expected -- you will get one answer evaluator which
checks whether the answer is 234.

Previously you had to write:

($ans_eval) = num_cmp(234);

or else you would have the numeral 1 placed in $ans_eval since
that is how many answer evaluators were created.

Revision 171 - Directory Listing
Modified Thu Aug 30 02:59:30 2001 UTC (18 years, 2 months ago) by gage
Fixed a misspelling of displaystr in the undeterminedExp subroutine

Revision 170 - Directory Listing
Modified Thu Aug 30 02:58:29 2001 UTC (18 years, 2 months ago) by gage
Fixed a careless mistake in localizing variables.

Revision 165 - Directory Listing
Modified Wed Aug 29 18:06:08 2001 UTC (18 years, 2 months ago) by apizer
Added Zig's more general problem grader

Revision 163 - Directory Listing
Modified Wed Aug 29 11:56:30 2001 UTC (18 years, 2 months ago) by gage
Modifications to documentation.

Minor modifications to the way some defaults are set.  New
versions use set_default_options.

Revision 160 - Directory Listing
Modified Sun Aug 26 02:22:48 2001 UTC (18 years, 2 months ago) by gage
Modified the pod documentation

Revision 159 - Directory Listing
Modified Thu Aug 23 23:56:03 2001 UTC (18 years, 3 months ago) by gage
Modified NUM_CMP so that it always places a numerical value in
$rh_ans->{correct_ans} even when the original answer is an
exression to be evaluated by perl.

Also modified prfmt so that it doesn't try to format arithmetic
expressions using sprintf

Revision 158 - Directory Listing
Modified Wed Aug 22 19:19:14 2001 UTC (18 years, 3 months ago) by gage
Commented out  an unnecesary line requiring List.pm

Revision 156 - Directory Listing
Modified Wed Aug 22 16:16:04 2001 UTC (18 years, 3 months ago) by gage
Added mol (mole -- basic unit)
and horsepower = 746W (watts)

Revision 154 - Directory Listing
Modified Tue Aug 21 01:23:43 2001 UTC (18 years, 3 months ago) by gage
Added a default value for tolerance to is_zero_array
macro and removed the allow_unknown_defaults value.

Changed the call to is_zero_array from tol to tolerance in
FUNCTION_CMP.

Previously, because of the mislabeling of 'tolerance' as 'tol'  the
tolerance value could not be set and was always being
set to a default value.

Revision 146 - Directory Listing
Modified Fri Aug 17 18:15:23 2001 UTC (18 years, 3 months ago) by sh002i
moved from webwork/ww_prob_lib/macros

Revision 135 - Directory Listing
Modified Wed Aug 15 14:45:38 2001 UTC (18 years, 3 months ago) by ch003i
Added 'allow_unknown_options' in is_a_zero_array filter to avoid error in function_cmp routine.

Revision 128 - Directory Listing
Modified Mon Aug 13 20:41:26 2001 UTC (18 years, 3 months ago) by sh002i
Fixed makeL2H to use $Global::externalLatex2HTML{Path,Version,Init} vars.

Revision 125 - Directory Listing
Modified Mon Aug 13 18:12:32 2001 UTC (18 years, 3 months ago) by gage
Updating pod documentation

Revision 124 - Directory Listing
Modified Mon Aug 13 16:09:14 2001 UTC (18 years, 3 months ago) by gage
Updating pod documentation

Revision 123 - Directory Listing
Modified Mon Aug 13 16:07:32 2001 UTC (18 years, 3 months ago) by gage
Removed warning message about avg_problem_grader, since now
avg_problem_grader is also installed in PGtranslator and can
be used as a default grader. (std_problem_grader can also be
used as a default).

Revision 122 - Directory Listing
Modified Sat Aug 11 03:17:43 2001 UTC (18 years, 3 months ago) by gage
More adjustments to documentation for answer evaluators

Revision 120 - Directory Listing
Modified Sat Aug 11 02:25:08 2001 UTC (18 years, 3 months ago) by gage
More documentation added.

Revision 119 - Directory Listing
Modified Sat Aug 11 01:48:05 2001 UTC (18 years, 3 months ago) by gage
Added pod comments to PGanswermacros for some of the filters.

I also rearranged the structure of the file slightly to make it
easier to add the pod documentation.

Revision 114 - Directory Listing
Modified Fri Aug 10 18:58:31 2001 UTC (18 years, 3 months ago) by ch003i
Edited l2h_sticky_answers to stop unwanted combining when answers used multiple fields.

Revision 110 - Directory Listing
Modified Thu Aug 9 21:39:26 2001 UTC (18 years, 3 months ago) by gage
Changes made to best approximation parameters -- added
set_default_options call.  Removed some warning messages.

Revision 109 - Directory Listing
Modified Thu Aug 9 21:37:29 2001 UTC (18 years, 3 months ago) by gage
AnswerEvaluators can now handle ans_hash as an input (this allows
the answerevaluator to be used as a filter in another answer evaluator

Cosmetic changes made to the error reporting when the debug
flag is set.

Revision 108 - Directory Listing
Modified Thu Aug 9 16:25:05 2001 UTC (18 years, 3 months ago) by ch003i
Edited check_eigenvector to include debug option and fixed post-filter to prevent crashing.

Revision 103 - Directory Listing
Modified Wed Aug 8 02:29:05 2001 UTC (18 years, 3 months ago) by gage
Changed names in calculate difference vector   subroutine to make the
process a bit clearer.  There is still more work to be done.

Revision 102 - Directory Listing
Modified Wed Aug 8 02:24:16 2001 UTC (18 years, 3 months ago) by gage
Minor  changes to the #!/usr/bin/perl line

Revision 98 - Directory Listing
Modified Tue Aug 7 18:33:48 2001 UTC (18 years, 3 months ago) by sam
Changed $tthpath to pull path from %envir rather than hardcoded path. Yay!

Revision 91 - Directory Listing
Modified Wed Aug 1 16:32:51 2001 UTC (18 years, 3 months ago) by gage
Bringing the common courseScripts version of PGcomplexmacros.pl up to date with the version of PGcomplexmacros.pl found
in the WW_Prob_Lib2 macros directory.

Revision 88 - Directory Listing
Modified Thu Jul 12 14:53:58 2001 UTC (18 years, 4 months ago) by apizer
Fixed bug so that now functions with negative values are handled correctly
Line 2451 has been replaced by line 2452

Revision 84 - Directory Listing
Modified Tue Jul 3 12:54:15 2001 UTC (18 years, 4 months ago) by apizer
added line 3618 so that only capital E's will be used in scientific notation

Revision 81 - Directory Listing
Modified Mon Jul 2 19:13:35 2001 UTC (18 years, 4 months ago) by chris
Continuing standardizing spacing and fixing comments.

Revision 80 - Directory Listing
Modified Mon Jul 2 19:04:34 2001 UTC (18 years, 4 months ago) by maria
added Regression.pm

Revision 79 - Directory Listing
Modified Mon Jul 2 19:02:06 2001 UTC (18 years, 4 months ago) by maria
initial report

Revision 78 - Directory Listing
Modified Thu Jun 28 16:59:20 2001 UTC (18 years, 4 months ago) by maria
modified documentation

Revision 77 - Directory Listing
Modified Thu Jun 28 16:12:58 2001 UTC (18 years, 4 months ago) by maria
updated from version 0.06 to version 0.07

Revision 74 - Directory Listing
Modified Wed Jun 27 21:04:59 2001 UTC (18 years, 4 months ago) by maria
modified documentation

Revision 73 - Directory Listing
Modified Mon Jun 25 20:14:44 2001 UTC (18 years, 4 months ago) by apizer
peviewing empty an empty answer no loger gives a pick screen

Revision 72 - Directory Listing
Modified Mon Jun 25 19:23:12 2001 UTC (18 years, 4 months ago) by gage
Change MatrixReal to MatrixReal1

Revision 71 - Directory Listing
Modified Mon Jun 25 19:22:49 2001 UTC (18 years, 4 months ago) by gage
Changed references to MatrixReal to MatrixReal1

This might break problems involving matrices or ones involving
answering questions with arbitrary constants (e.g. indefinite integral)

I believe I have caught all of the instances in which this name is used.

Revision 68 - Directory Listing
Modified Mon Jun 25 18:18:32 2001 UTC (18 years, 4 months ago) by sam
Renamed MatrixReal.pm to MatrixReal1.pm

Revision 67 - Directory Listing
Modified Mon Jun 25 16:07:17 2001 UTC (18 years, 4 months ago) by maria
corrected a misprint

Revision 65 - Directory Listing
Modified Sun Jun 24 03:55:24 2001 UTC (18 years, 5 months ago) by gage
Replaced $piece1 with $piece3 in line 336 and following to avoid a
"my" conflict.  I also commented out oldivy which contained a print
statement and therefore wouldn't compile within the problems.

These are temporary fixes, for this file in order to enable it to compile.

Revision 64 - Directory Listing
Modified Sun Jun 24 02:38:31 2001 UTC (18 years, 5 months ago) by maria
just corrected spelling

Revision 63 - Directory Listing
Modified Sat Jun 23 21:22:33 2001 UTC (18 years, 5 months ago) by maria
Renamed normal to normal_prob, and inv_normal to normal_distr (modified all the problems in the library accordingly.)
----------------------------------------------------------------------

Revision 61 - Directory Listing
Modified Fri Jun 22 21:29:58 2001 UTC (18 years, 5 months ago) by gage
Fixed errors in sourceAlias

Modified parts of alias so that PG_restricted_eval was not used.
(This is unnecessary as long as we use forking to create a child
with the same namespace.)

Revision 60 - Directory Listing
Modified Fri Jun 22 20:03:01 2001 UTC (18 years, 5 months ago) by gage
Added _PGgraphmacros_init subroutine

Revision 59 - Directory Listing
Modified Fri Jun 22 19:39:04 2001 UTC (18 years, 5 months ago) by gage
Added Distributions to the module list

Revision 58 - Directory Listing
Modified Fri Jun 22 19:38:28 2001 UTC (18 years, 5 months ago) by gage
Corrected the #!/usr/local/bin/webwork-perl
line

Revision 56 - Directory Listing
Modified Fri Jun 22 19:31:16 2001 UTC (18 years, 5 months ago) by maria
initial report

Revision 55 - Directory Listing
Modified Fri Jun 22 19:28:28 2001 UTC (18 years, 5 months ago) by maria
added -PGstatisticsmacros_init; cosmetic changes

Revision 54 - Directory Listing
Modified Fri Jun 22 18:45:00 2001 UTC (18 years, 5 months ago) by chris
Continuing to edit the file to fix spacing and ordering of subroutines.

Revision 53 - Directory Listing
Modified Fri Jun 22 17:34:13 2001 UTC (18 years, 5 months ago) by chris
Removed already-commented-out routines which were no longer needed.

Revision 52 - Directory Listing
Modified Fri Jun 22 01:06:52 2001 UTC (18 years, 5 months ago) by maria
made 'infty' an acceptable limit of integration for normal function

Revision 50 - Directory Listing
Modified Thu Jun 21 20:38:56 2001 UTC (18 years, 5 months ago) by chris
Split evalutesToNumber into subroutine is_a_numeric_expression.  No changes in functionality.

Revision 49 - Directory Listing
Modified Thu Jun 21 19:53:59 2001 UTC (18 years, 5 months ago) by chris
Added "evaluatesToNumber" subroutine.  In conjunction with fix_answer_for_display filter, this now fixes a bug with displaying student_ans in a problem that allows strings for valid answers.

Revision 47 - Directory Listing
Modified Thu Jun 21 19:02:29 2001 UTC (18 years, 5 months ago) by chris
Same as PG163macros.pl with a new name.  subroutine ivy updated to improve readability.

Revision 46 - Directory Listing
Modified Thu Jun 21 19:00:53 2001 UTC (18 years, 5 months ago) by amanda
fixed fact and step functions so they are recognizable functions again.i

Revision 45 - Directory Listing
Modified Thu Jun 21 16:58:25 2001 UTC (18 years, 5 months ago) by gage
Added PGcomplexmacros.pl and PGmatrixmacros.pl to CVS

Revision 44 - Directory Listing
Modified Thu Jun 21 15:38:33 2001 UTC (18 years, 5 months ago) by chris
Corrected "unrecognizable units" error message so it is displayed correctly.

Revision 43 - Directory Listing
Modified Thu Jun 21 15:00:33 2001 UTC (18 years, 5 months ago) by maria
fixed inv_romberg

Revision 42 - Directory Listing
Modified Thu Jun 21 14:57:19 2001 UTC (18 years, 5 months ago) by maria
new macros

Revision 41 - Directory Listing
Modified Thu Jun 21 14:40:51 2001 UTC (18 years, 5 months ago) by chris
Added postfilter fix_answers_for_display which incorporates all changes made in previous version.

Revision 40 - Directory Listing
Modified Thu Jun 21 13:33:27 2001 UTC (18 years, 5 months ago) by gage
Changed NUM_CMP so that the calculated versions of the student's answer
and the professor's remain in the answer hash to be displayed by
displayMacros.

There are now slight clues, when using num_str_cmp that the
instructor's answer is a string. I'm not sure anyone can find them
easily.  Further refinements should be able to remove them in any case.

Revision 39 - Directory Listing
Modified Thu Jun 21 10:21:28 2001 UTC (18 years, 5 months ago) by maria
added inv_romberg function which, given a function, a, and value computes b s.t. integral from a to b is equal
to value.

Revision 38 - Directory Listing
Modified Thu Jun 21 01:07:21 2001 UTC (18 years, 5 months ago) by maria
added back the fact (factorial) function that has been accidentally deleted

Revision 37 - Directory Listing
Modified Thu Jun 21 01:03:14 2001 UTC (18 years, 5 months ago) by apizer
Hints and Solutions now use basically the same mechanism.  Fixed hugs in hints
and minor bugs in solutions.

Revision 36 - Directory Listing
Modified Wed Jun 20 20:01:26 2001 UTC (18 years, 5 months ago) by gage
Simplified some of the scripts.  Using forking there is no need
to evaluate $main:: everytime, since it remains the same for both
the parent (where the script is compiled) and in the child where
the script is executed.

There were other minor fixes to work around bugs in 5.6.0 which were
fixed in 5.6.1

Revision 35 - Directory Listing
Modified Wed Jun 20 19:04:08 2001 UTC (18 years, 5 months ago) by chris
Modified num_cmp to use filters for string comparsions.  Routed std_num_str_cmp through num_cmp routines.

Revision 34 - Directory Listing
Modified Wed Jun 20 02:02:49 2001 UTC (18 years, 5 months ago) by gage
Fixed problem in std_num_cmp arising from an earlier merge.

Revision 33 - Directory Listing
Modified Wed Jun 20 00:40:30 2001 UTC (18 years, 5 months ago) by gage
Corrected error in _PGanswermacros_init

Revision 32 - Directory Listing
Modified Wed Jun 20 00:32:01 2001 UTC (18 years, 5 months ago) by gage
Added _PGanswermacros_init subroutine

Revision 31 - Directory Listing
Modified Wed Jun 20 00:29:58 2001 UTC (18 years, 5 months ago) by gage
Added _PG......_init  subroutines to these two files
.

Revision 30 - Directory Listing
Modified Tue Jun 19 22:29:01 2001 UTC (18 years, 5 months ago) by gage
More refinement of the initialization routines in PGbasicmacros.pl and the
way it is called from dangerousMacros.pl

Revision 29 - Directory Listing
Modified Tue Jun 19 21:56:35 2001 UTC (18 years, 5 months ago) by gage
Fixed an evaluation which was being done at compile time rather than at
run time.  This could cause the definition of 'main' to be incorrect.

The evaluation was in an error message, so it has probably not been noticed.

Revision 28 - Directory Listing
Modified Tue Jun 19 20:56:08 2001 UTC (18 years, 5 months ago) by gage
Fixed problem in dangerousMacros.pl defining i so that it can be used
as a complex number.

Fixed htmlLink so that it gives a friendly error message about broken links
when fed an undefined url.

Revision 27 - Directory Listing
Modified Tue Jun 19 20:31:39 2001 UTC (18 years, 5 months ago) by gage
Many modifications to courseScript scripts which will insure that the
routines are re-entrant (i.e. they can be called via mod_perl and don't
need to be re-compiled for every execution run.)

Minor modifications to processProblem8.pl and to PGtranslator.pm

Revision 26 - Directory Listing
Modified Tue Jun 19 16:49:09 2001 UTC (18 years, 5 months ago) by gage
Fixed bug in rhomberg.

Revision 23 - Directory Listing
Modified Tue Jun 19 15:37:34 2001 UTC (18 years, 5 months ago) by gage
Modified the  documentation for the trapezoid function.

Revision 22 - Directory Listing
Modified Tue Jun 19 13:07:28 2001 UTC (18 years, 5 months ago) by chris
Added unix-style filters to NUM_CMP and re-routed all numerical answer evaluators to num_cmp.  Combined numerical_compare_with_units and NUM_CMP.

Revision 20 - Directory Listing
Modified Tue Jun 19 01:50:35 2001 UTC (18 years, 5 months ago) by gage
Removing from dev 1-7-01
the files numericalmethods.pl and unit_processor.pl which are
no longer used.  They have been replaced by Units.pm and PGnumericalmacros.pl
respectively.

Revision 19 - Directory Listing
Modified Mon Jun 18 19:38:16 2001 UTC (18 years, 5 months ago) by amanda
added fact function to list of functions accepted
fixed step and fact function so that they are seen properly in 'preview answer'
usa

Revision 16 - Directory Listing
Modified Mon Jun 18 17:54:53 2001 UTC (18 years, 5 months ago) by sam
added test comment at top.

Revision 14 - Directory Listing
Modified Mon Jun 18 17:32:39 2001 UTC (18 years, 5 months ago) by amanda
added fact function

Revision 11 - Directory Listing
Modified Mon Jun 18 15:21:51 2001 UTC (18 years, 5 months ago) by sam
another setup script test (changed #! lines)

Revision 10 - Directory Listing
Modified Fri Jun 15 21:06:18 2001 UTC (18 years, 5 months ago) by sam
nothing should change

Revision 8 - Directory Listing
Modified Fri Jun 15 16:24:03 2001 UTC (18 years, 5 months ago) by gage
modified use lib lines in cgi-scripts, scripts, courseScripts
removed Global.pm updating and use lib line code from system_webwork_setup
modified Global.pm to use webworkConfig (which is not in the repository!)

Revision 7 - Directory Listing
Modified Fri Jun 15 15:16:23 2001 UTC (18 years, 5 months ago) by gage
tthPath set to /usr/local/bin/tth

Revision 6 - Directory Listing
Modified Fri Jun 15 14:29:57 2001 UTC (18 years, 5 months ago) by gage
development version dev-1-7-01 from /ww/webwork/development 15-June-2001

Revision 5 - Directory Listing
Modified Thu Jun 14 23:45:41 2001 UTC (18 years, 5 months ago) by gage
dev-1-7-01

Revision 4 - Directory Listing
Modified Thu Jun 14 23:27:51 2001 UTC (18 years, 5 months ago) by gage
dev-1-7-1

Revision 2 - Directory Listing
Added Thu Jun 14 17:08:51 2001 UTC (18 years, 5 months ago) by sam
initial import

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