How do I use Microsoft Equation 3.0?

[Guest]

I am using Microsoft Word 200; I also have Excel 2002.
How do I place a horizontal line over a letter as in an equation? I need to
place a horizontal bar over a capital "S" with a small "t" as a subscript
next to the capital "S". St

I was unable to find it in the symbol listing. If it can't be done through
Word, will Excel be a choice; if so how would I do it--user friendly
explanation please.

Also, can someone tell me how to use Microsoft Equation 3.0 in Excel under
"Object" to place a horizontal line over a letter?

Thanks!

 

[Guest]

I really do not know but maybe have the Analysis Toolpak addin and the
Analysis Toolpak for VBA Addin check marked.

Tools > Addins >>....