QUestion : How to define math macro

[charles bouillot]

Hi,
I'm quite stupid so I can't manage to make a math macro. I'm completly
newbie with Lyx or TeX I've readed the manual but what is the
"minibuffer" (sect 5.5 of the users manual), is it the preambule ? I've
readed the one of the users manual but I didn't find smething
containing  math-macro macro
Does someone can send me a real example of how to create a math-macro ?
Thanx in advance
Charles Bouillot
[EMAIL PROTECTED]