[texhax] Fwd: floor and ceiling

Robert Wilson millstadtf at gmail.com
Wed Mar 4 23:44:46 CET 2009

Sorry; forgot to reply-all

---------- Forwarded message ----------
From: Robert Wilson <millstadtf at gmail.com>
Date: Wed, Mar 4, 2009 at 2:44 PM
Subject: Re: [texhax] floor and ceiling
To: "P. R. Stanley" <prstanley at ntlworld.com>

\lfloor is the left side of the the floor bracket, and \rfloor the right.
\lfloor looks kind of like a capital L, while \rfloor is the mirror image.
If the innards of the bracket is tall (like a \frac, for example) using
$\left\lfloor \frac{n}{2} \right\rfloor$ would be best. \ceil is similar.


On Wed, Mar 4, 2009 at 2:29 PM, P. R. Stanley <prstanley at ntlworld.com>wrote:

> Hi folks
> what do the letters l and r mean in \lfloor \lceil and \rfloor and \rceil?
> would this
>        $t ( \lfloor n/2 rfloor )$
>        or this
>                $t (\left \lfloor n/2 rfloor \right)$
>                be more appropriate?
> Please feel free to make Any other changes to the code frag.
> many thanks
> Paul
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