[PD] number to fractions external?
i go bananas
hard.off at gmail.com
Fri Dec 16 12:07:13 CET 2011
yeah, my patch only works for rational numbers.
will have a look at the article / method you posted, claude.
On Fri, Dec 16, 2011 at 7:49 PM, Claude Heiland-Allen <claude at goto10.org>wrote:
> On 16/12/11 06:51, i go bananas wrote:
>> by the way, here is the method i used:
>> first, convert the decimal part to a fraction in the form of n/100000
>> next, find the highest common factor of n and 100000
>> (using the 'division method' like this:
>> then just divide n and 100000 by that factor.
> I don't think that method will give happy results for most simple
> fractions. Plus it's useful to get approximations that are simpler or more
> accurate, like 3 or 22/7 or 355/113 for pi..
> Your patch doesn't work very well for me:
> input: 1/7
> fraction: 2857/20000
> input: 8/9
> fraction: 11111/12500
> input: 7/11
> fraction: 15909/25000
> input: 11/17
> fraction: 4313.67/6666.67
> (input is "$1 $2"--[/], so as accurate as floating point is...)
> actually, that means it's accurate to 6 decimal places, i guess.
> There's a way to get a "simple" fraction like 1/7 instead of 143/1000 or
> whatever, could be possible to implement in Pd? (I've not tried.)
>  http://hackage.haskell.org/**packages/archive/base/latest/**
>  http://en.wikipedia.org/wiki/**Continued_fraction#Best_**
> well...whatever :D
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