Re: Convert Decimal to Fractional Notation

["Booth Martin" <Booth@xxxxxxxxxxxx>]

One of the problems to resolve is the layout of the fraction. If you ever
need to sort by size, 1/6 appears greater than 1/2. 
 
The easiest way to resolve the problem is to create an alternating array
where the secondary array is a list of the fractions you consider valid. You
probably don't won't a mathematical solution that will provide an answer of
357/ 512, for instance?
 
Then make the primary array be the decimal notations that will be the
breakpoints for your application. Look up greater-than in the primary, and
there's your fraction, in the arrangement you want.
 
 
---------------------------------------------------------
Booth Martin http://www.MartinVT.com
Booth@xxxxxxxxxxxx
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-------Original Message-------
 
From: RPG programming on the AS400 / iSeries
Date: Friday, October 17, 2003 10:31:20 AM
To: RPG programming on the AS400 / iSeries
Subject: Re: Convert Decimal to Fractional Notation
 
Bob,
 
This would be a cool one to write... I don't have one but here's how I
would approach it:
 
1) Determine what the finest level of measurement you want to return,
i.e. 8th, 16th, 32nd, 64th, etc.
 
2) Create a run-time table of the decimal positions. You only need to
do this for the range of > 0 and < 1.
 
3) Strip the decimal value out of your field.
 
4) Determine your rounding rules and round the remainder to the nearest
value found in the run-time table. The position of the array will be
the top half of the fraction, the factor from 1) will be the bottom
half.
 
5) Divide the fraction down to the smallest valid argument ( 4/16 = 1/4,
etc. )
 
HTH,
 
Joel
http://www.rpgnext.com
 
On Fri, 2003-10-17 at 14:59, Bob O. wrote:
> Does anyone have an example of converting a decimal number to it's
> fractional equivalent?
>
> For example: 15.3750 = 15-3/8
>
> The decimal field to convert is a 10/4 field. Any help is appreciated.
> Thanks in advance.