From: Daniel Bretoi <lists@...>
Date: 2002-09-14T04:41:52+09:00
Subject: Re: float precision

Isn't that a dangerous pitfall? 

irb(main):001:0> a = 20020912.194220
20020912.19
irb(main):002:0> a = a.to_s
"20020912.19"

if it's all storered, shouldn't the whole number end up in the string?



On Sat, Sep 14, 2002 at 04:03:19AM +0900, Paul Brannan wrote:
> On Sat, Sep 14, 2002 at 02:54:56AM +0900, Daniel Bretoi wrote:
> > Sorry if this has been answered before.
> > I'll demonstrate my question with irb.
> > 
> > irb(main):001:0> a = 20020912.194220
> > 20020912.19
> > 
> > Why do I miss the last 5 digits when I try to assign a?
> 
> It's not missing; it's just not printed:
> 
> irb(main):001:0> class Float; def inspect; "%.10f" % self; end; end
> nil
> irb(main):002:0> a = 20020912.194220
> 20020912.1942199990

-- 
You don't exist, go away!