From: Lloyd Zusman <ljz@...>
Date: 2005-11-16T09:29:11+09:00
Subject: Re: Quick question.

hmmm <netcam@gmail.com> writes:

> How would I format a number to simply be left-zero-padded with 2 floating
> points?
>
> eg.
> 000.24 from .238888888
> 001.24 from 1.237777777
> 010.25 from 10.249999999
> 100.25 from 100.24999999
>
> I can do: %.2f to get the 2 decimals, but it doesn't do left-zero-pad.
> I can do: %03d to pad 3 digits to the left, but it doesn't trim the decimals
>
> I can do: printf("%03d%.2f", val, (val.to_f-val.to_i)) but that always
> injects
> an extra 0 like so:
>
> 0000.24
> 0010.24
> 0100.25
> 1000.25
>
> I have yet to find a good (useful) doc on how the format args work, so point
> me there but beware that most of the docs out there are super useless :)

Try this:  printf("%07.2f", val)

The "7" is the total field width, including the decimal point.  The "2"
represents the number of decimal places.  The leading "0" means to
zero-pad.


-- 
 Lloyd Zusman
 ljz@asfast.com
 God bless you.