The TeX filter seems to produce a very weird response in Moodle 1.93 with the variable "y." This was not a problem in Moodle version 1.6, but I now find this odd behavior when moving my courses to version 1.93.
The problem appears when one types a function of the variable "y" like in("y" sorrounded by parentheses) In such cases, the rendering will show the following:
I could not understand what was going on, but it seems that has to do with the "y" surrounded by parentheses. After many attempts, I found that the correct rendering can be obtained if spaces are placed in between the parentheses symbols and the "y." I hope that this finding could help other instructors which are trying to display for example trig functions of additions of angles, etc.
Does anyone know why the notationis not understood now in Moodle 1.9?
In fact, in order to have this posting show what I wanted I have had to edit it three times since the "y" in between parentheses (and no spaces) appears as a little hand with a thumb up... This is not very convenient for math instructors so be warned.