Re: Rounding up to the next .5

In article <slrnf37pe4.d3t.tadmc@xxxxxxxxxxxxxxxxxx>, Tad McClellan wrote:
Justin C <justin.0704@xxxxxxxxxxxxxx> wrote:
In article <AIKYh.2898$r77.978@trndny08>, Jürgen Exner wrote:
Justin C wrote:

I'm trying to round weights (with up to two decimal places) up to the
next half kilo (unless the weight is an exact or .5 kilo already).

For one I am pretty sure there are modules on CPAN that do floor() and
ceiling() functions.

There are that, and, IIRC (from today's Googling for a round() function)
they are part of POSIX, and therefore (if my understanding is correct)
already installed.

Trouble is, I don't know what those are/do, perldoc wasn't much help,
I suppose they're mathematical functions, I didn't get that far with my
education and so didn't understand,

http://en.wikipedia.org/wiki/Ceiling_function

Thanks. I understand most of what that document says, the notation does
my head in though

Justin.

--
Justin C, by the sea.
.

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