[texhax] floor and ceiling

Robert Wilson millstadtf at gmail.com
Thu Mar 5 00:03:22 CET 2009


\lceil is a vertical line with a right-facing horizontal line at the top
(like the right half of a T, or an F without the middle branch), and \rceil
is the mirror image, like the left half of a T, or a 7

On Wed, Mar 4, 2009 at 2:57 PM, P. R. Stanley <prstanley at ntlworld.com>wrote:

>
> >\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.
> >
> >Great! Thanks. What do lceil and rceil look like?
>
>
>
> >HTH,
> >Bob
> >
> >On Wed, Mar 4, 2009 at 2:29 PM, P. R. Stanley
> ><<mailto:prstanley at ntlworld.com>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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