[WWdevel] PGanswermacros broken

[William Z. <wz...@cs...>]

I did a patch update, changed global.conf.dist, and the =20
PGanswermacros is broken.
Here is a screen shot:
=EF=BF=BC
I commented the &$Context lines, and tried again:
Error messages

Can't call method "copy" on an undefined value at line 1066 of (eval =20
145) Died within main::NUM_CMP called at line 493 of (eval 145) from =20
within main::num_cmp called at line 52 of [TMPL]/Library/ma123DB/set3/=20=

s7_4_18.pg

Error details

         Problem2
ERROR caught by Translator while processing problem file:Library/=20
ma123DB/set3/s7_4_18.pg
****************
Can't call method "copy" on an undefined value at line 1066 of (eval =20
145)
    Died within main::NUM_CMP called at line 493 of (eval 145)
    from within main::num_cmp called at line 52 of [TMPL]/Library/=20
ma123DB/set3/s7_4_18.pg

****************

------Input Read
1               ##KEYWORDS('integrals', 'partial fractions')
2               ##DESCRIPTION
3               ## Evaluate a definite integral.
4               ##ENDDESCRIPTION
5
6               ## AmberHolden tagged
7               ## Shotwell cleaned
8
9               ## DBsubject('Calculus')
10              ## DBchapter('Techniques of Integration')
11              ## DBsection('Integration by Partial Fractions')
12              ## Date('6/3/2002')
13              ## Author('')
14              ## Institution('')
15              ## TitleText1('Calculus Early Transcendentals')
16              ## EditionText1('4')
17              ## AuthorText1('Stewart')
18              ## Section1('7.4')
19              ## Problem1('18,19,20')
20
21              DOCUMENT();
22
23              loadMacros(
24              "PGbasicmacros.pl",
25              "PGanswermacros.pl",
26              "PGauxiliaryFunctions.pl"
27              );
28
29
30              TEXT(beginproblem());
31
32              $m=3Drandom(1,3,1);
33              $n=3Drandom(1,6,1);
34              $a=3Drandom(-3,3,1);
35              $c=3Drandom(1,5,1);
36              $b=3D$a+$c;
37              $p=3D$m+$n;
38              $q=3D$n*$a+$m*$b;
39              $l=3D$a+$b;
40              $k=3D$a*$b;
41              $soln=3D"$m*ln(1.5)+$n*ln(($c+3)/($c+2))";
42              $r=3D2-$a;
43              $s=3D3-$a;
44              $num=3Dnicestring([$p, $q], ['x', '']);
45              $den=3Dnicestring([1, $l, $k], ['x^2', 'x', '']);
46              BEGIN_TEXT
47
48              Evaluate the integral.
49              $BR
50              $BR \[ \int_{$r}^{$s} \frac{$num}{$den} dx \]
51              $BR Answer: \{ans_rule(60) \}
52              END_TEXT
53              ANS(num_cmp($soln));
54
55              ENDDOCUMENT();

-----

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Time	Sun Sep 18 18:13:51 2005
Method	GET
URI	/webwork2/csulb_ma123h_murray/hw3/2/
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--
William Ziemer
Mathematics Department
CSULB