Pg 2.15 -- hotfix

[mgage]

Fixes bug in convert_to_array_ref() which was interpreting old style matrices (wwMatrix or Real1Matrix) as MathObject matrices. this caused problems with display_matrix() when using old style matrices

Hot fix.

[mgage]

Test file:

DOCUMENT();

loadMacros(
"PG.pl",
"PGbasicmacros.pl",
"PGanswermacros.pl",
"PGmatrixmacros.pl",
"MathObjects.pl",
"problemRandomize.pl"
);

TEXT(beginproblem());
$showPartialCorrectAnswers = 1;

$dim = 2;

Context ("Matrix");
$L1 = new Matrix($dim,$dim); #creates wwMatrix
$L1->assign(1,1,5);
$L2 = Matrix("[[2,5],[2,7]]"); #creates Matrix MathObject

BEGIN_TEXT

L1 {ref($L1)} {display_matrix($L1)}
$PAR
L2 {ref($L2)} {display_matrix($L2)}
$PAR
Notice that both old style (wwMatrix) and MathObject (Value::Matrix) should work now with no warnings. With the bug the wwMatrix was not properly processed.
END_TEXT

ENDDOCUMENT();

[mgage]

Glenn. take a look and pull it if it seems ok.

[drgrice1]

Looks good.