Dokeos

Sometimes it's necessary to write a linear system using the CKeditor and ASCIIMathML, but no model is present in the input form, so here there's a tip for matematicians that use Dokeos:

{(a_11*x+a_12*y=a_13),(a_21*x+a_22*y=a_23):}

(it's possible to insert this model into the formula input form modifying the file

/main/inc/lib/ckeditor/_source/plugins/asciimath/dialogs/editor.html

at line 81 about, introducing the line

<td colspan="2" class="character" title="&quot;text&quot;" onclick="javascript: Set('&quot;text&quot;');">`&quot;text&quot;`</td>
<td colspan="2" class="character" title="{(a_11*x+a_12*y=a_13),(a_21*x+a_22*y=a_23):};" onclick="javascript: Set('{(a_11*x+a_12*y=a_13),(a_21*x+a_22*y=a_23):}');">`{(a_11*x+a_12*y=a_13),(a_21*x+a_22*y=a_23):}`</td>
<td></td>

after "text" model