# [texhax] big-O, little-o notation

Philip G. Ratcliffe philipratcliffe at tiscali.it
Sat Jan 10 14:26:31 CET 2004

> Ross Moore's solution
>
> \providecommand{\OO}[1]{\operatorname{O}\bigl(#1\bigr)}
>
> with usage
>
> $\OO{f(n)}$
>
> is elegant, and has a number of nice features, but is less flexible
> in allowing for really big arguments in a displayed equation.

Well, you could substitute \bigl and \bigr with \left and \right:

\providecommand{\OO}[1]{\operatorname{O}\left(#1\right)}

Inserting something like \strut between a should also guarantee a slightly
larger pair always.

Cordialmente,  Philip G. Ratcliffe



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