- class_exists( 'MathRenderer' ) ? array(
- 'image' => $wgLang->getImageFile( 'button-math' ),
- 'id' => 'mw-editbutton-math',
- 'open' => "<math>",
- 'close' => "</math>",
- 'sample' => wfMessage( 'math_sample' )->text(),
- 'tip' => wfMessage( 'math_tip' )->text(),
- 'key' => 'C'
- ) : false,