This task was merged with other similar tasks
: T131190: Set MathML / SVG as the default rendering mode on de.wikibooks.org
: T130699: Change default <math> display to utilise "MathML with SVG or PNG fallback" at English Wikisource.
The original request was:
It appears that there was an RFC at enwiki about mathematics preferences. It was closed as a consensus to change the default to MathML. The discussion is here: https://en.wikipedia.org/wiki/Wikipedia_talk:Special:Preferences#RfC:_Change_Default_Math_Appearance_Setting_to_MathML