Using Moodle 2.0.2 and DragMath.
$$ \left( \begin{array}{ccc} 1 & 2 & 3 & 4 & 5\\-\left(1\right) & -\left(2\right) & -\left(3\right) & -\left(4\right) & -\left(5\right)\\ \end{array} \right) $$
When I create a matrix with more than 3 columns, only 3 columns will be displayed, with the additional column data wrapping into the next row.
Anyone else get this problem? Where do I start to fix it?
The syntax of arrays seems to be wrong - dragmath applet adds \begin{array}{<span style="color:#ff0000;"><strong>ccc</strong></span>} which is a bug.
If the matrix has 5 columns it should start with
\begin{array}{<span style="color:#ff0000;"><strong>ccccc</strong></span>}
and your matrix could look like
$$\left( \begin{array}{ccccc} 1 & 2 & 3 & 4 & 5\\-1 & -2 & -3 & -4 & -5\\ \end{array} \right)$$
with
\left( \begin{array}{ccccc} 1 & 2 & 3 & 4 & 5\\-1 & -2 & -3 & -4 & -5\\ \end{array} \right)
Or for example
$$ \left( \begin{array}{rrrrr} 1 & 2 & 3 & 4 & 5\\-1 & -2 & -3 & -4 & -5\\ \end{array} \right) $$
with right alignment
\left( \begin{array}{<span style="color:#ff0000;"><strong>rrrrr</strong></span>} 1 & 2 & 3 & 4 & 5\\-1 & -2 & -3 & -4 & -5\\ \end{array} \right)
Ahh! Terrific! Thanks.
The bug report has been filled in: http://tracker.moodle.org/browse/MDL-30628
Developers of moodle can't fix this because it should be fixed in Dragmath applet.
Rick Bruderick and some anonymous user have created also an issue to DragMath bug tracker
http://sourceforge.net/tracker/?func=detail&aid=2219288&group_id=201862&atid=979256
http://sourceforge.net/tracker/?func=detail&aid=3239490&group_id=201862&atid=979256
http://sourceforge.net/tracker/?func=detail&aid=3239955&group_id=201862&atid=979256
but Alex and Chris obviously have not read this post...
Dear Rick,
Have you discovered WIRIS editor? www.wiris.com/editor/demo. If this can help, it is available in Chinese also. http://www.wiris.com/editor/languages
Note that WIRIS tools are commercial.
