It would be better to simply apply Text style to whatever characters you
don't want in italics.
Equation Editor follows the standard mathematics conventions that variables
are italic and function names (sin, tan, exp, ln, and so forth) are not. It
assumes that anything it doesn't recognize as a function must be a variable,
and it's up to you to mark it as Text if that's what you want.
The Style menu includes Math for variables, Function for function names, and
Text for "other stuff".
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Regards,
Jay Freedman
Microsoft Word MVP
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