Macro Language Reference > PIs > Maths > <?tptxexf>
  
<?tptxexf>
Description
Specifies the font PTC ALD is to use for Maths extensions within PTC ALD Maths.
Syntax
<?tptxexf font_name:t?>
<?tptxexf>
[no parameter]
Invoke the Maths - extension font dialog box.
font_name
The name of the font: must have already been defined for the document