I am using bold characters u,v,w,x in math mode. Is there a way to make a new command for that? Now I always have to type \bm{u}.

  • 1
    What about \newcommand{\bu}{\bm{u}}
    – Guido
    Nov 17, 2012 at 17:46

2 Answers 2


You can go


then use \bu instead of \bm{u} this is a bit quicker than using \bm every time as it only has to work out the corresponding bold font once. (That wouldn't be the case if you used \newcommand\bu{\bm{u}} which would expand to doing \bm every tine.


This is what I have :


When I want to type a bold character I just write

  • 9
    probably not a good idea to redefine \, -- that is the existing convention for a thin space, in both plain tex and latex. Nov 17, 2012 at 18:00

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