[#386100] Numeric#coerce docs are disaster — 7stud -- <bbxx789_05ss@...>

num.coerce(numeric) =E2=86=92 array

14 messages 2011/08/02

[#386114] Documentation Improvement Proposal — Chris White <cwprogram@...>

=3D Issues =3D

24 messages 2011/08/02
[#386115] Re: Documentation Improvement Proposal — Steve Klabnik <steve@...> 2011/08/02

I reeeeeealy dislike user comments on documentation. It's one of the

[#386117] Re: Documentation Improvement Proposal — Phillip Gawlowski <cmdjackryan@...> 2011/08/02

On Tue, Aug 2, 2011 at 7:39 PM, Steve Klabnik <steve@steveklabnik.com> wrot=

[#386118] Re: Documentation Improvement Proposal — Steve Klabnik <steve@...> 2011/08/02

> What's wrong with stealing WikiPedia's procedures? The model works

[#386119] Re: Documentation Improvement Proposal — Chris White <cwprogram@...> 2011/08/02

On Aug 2, 2011, at 11:00 AM, Steve Klabnik wrote:

[#386123] Re: Documentation Improvement Proposal — Steve Klabnik <steve@...> 2011/08/02

Apologies, I've just responded to everyone in-line.

[#386231] Brainstorming ideas how to improve Ruby's documentation — Marc Heiler <shevegen@...>

The title is misleading...

42 messages 2011/08/05
[#386233] Re: Brainstorming ideas how to improve Ruby's documentation — "Fred L." <f.linard@...> 2011/08/05

Hello,

[#386235] Re: Brainstorming ideas how to improve Ruby's documentation — Alexander Litvinovsky <alexander.litvinovsky@...> 2011/08/05

What are you talking about? Ruby has a nice docs, railsapi.com for example.

[#386297] Help out with the next version of ruby-lang.org — Magnus Holm <judofyr@...>

https://github.com/rubylang/ruby-lang.org

11 messages 2011/08/07

[#386341] Exceptional Ruby and Metaprogramming Ruby has anyone picked these up? — Kevin <darkintent@...>

I'm thinking of picking up these two books and was wondering if anyone

11 messages 2011/08/09

[#386378] ruby installation — "Momodou J." <modou75alieu@...>

how to implement this in windows :

16 messages 2011/08/09

[#386401] *WHY* does this not work? — serialhex <serialhex@...>

ok, so code:

23 messages 2011/08/09
[#386403] Re: *WHY* does this not work? — "Darryl L. Pierce" <mcpierce@...> 2011/08/09

On Wed, Aug 10, 2011 at 03:52:59AM +0900, serialhex wrote:

[#386404] Re: *WHY* does this not work? — serialhex <serialhex@...> 2011/08/09

On Tue, Aug 9, 2011 at 3:05 PM, Darryl L. Pierce <mcpierce@gmail.com> wrote:

[#386480] Odd regexp behavior — Glen Holcomb <damnbigman@...>

I'm running 1.9.2-p180

16 messages 2011/08/10

[#386506] Distributing Ruby program as a standalone executable (exe) for windows — Michelle Pace <michelle@...>

Hello there,

10 messages 2011/08/11

[#386539] Online tutor for Ruby — T J Pereira <tj5155@...>

I am finding it difficult to apply the RUBY program. Its because i have

18 messages 2011/08/12
[#386541] Re: Online tutor for Ruby — Phillip Gawlowski <cmdjackryan@...> 2011/08/12

On Fri, Aug 12, 2011 at 6:00 AM, T J Pereira <tj5155@tm.net.my> wrote:

[#386637] class inheritance and class constants — Iñaki Baz Castillo <ibc@...>

------------------------

16 messages 2011/08/14

[#386784] Green Shoes v1.0 released — ashbb <ashbbb@...>

Hello, everyone.

15 messages 2011/08/18
[#392062] Re: Green Shoes v1.0 released — Barry Yu <yubarry@...> 2012/01/09

why do I get this error?

[#386796] Searching in a directory — Yu Yu <htwoo@...>

Hello,

21 messages 2011/08/18

[#386893] Gritty Details of super() — luke gruber <luke.gru@...>

Hey guys,

18 messages 2011/08/21

[#386900] Possble bug in Ruby parser (Fixnum#times within "case" statement) — Iñaki Baz Castillo <ibc@...>

Hi, I cannot find an explanation for the following issue so I think it's a =

15 messages 2011/08/21
[#386901] Re: Possble bug in Ruby parser (Fixnum#times within "case" statement) — Ryan Davis <ryand-ruby@...> 2011/08/21

[#386903] Re: Possble bug in Ruby parser (Fixnum#times within "case" statement) — Iñaki Baz Castillo <ibc@...> 2011/08/21

2011/8/22 Ryan Davis <ryand-ruby@zenspider.com>:

[#386920] New to Ruby some problems — jack jones <shehio_22@...>

I am new to Ruby, My mother tongue is C++ .. I have too many problems I

21 messages 2011/08/22

[#386949] Want to get involved with this doc stuff? I'm making it even easier — Steve Klabnik <steve@...>

Hey guys-

9 messages 2011/08/22

[#387058] How the access the values of this result — QAS WM <qaiserwali@...>

I am getting the following as a result of a script I run.

11 messages 2011/08/26

[#387070] overloading methods question please? — jack jones <shehio_22@...>

def do_something(a as Array)

11 messages 2011/08/26

[#387138] String#split resets regex captures variables (Ruby 1.8.7) — Olivier Lance <bestiol@...>

Hi,

10 messages 2011/08/29

[#387196] SAMSUNG to produce "Ruby on Rails in Silicon" System on a Chip — Ilias Lazaridis <ilias@...>

(public draft)

9 messages 2011/08/31

[#387197] Prepend a character to a string in ruby — ruby rails <rubyonrails4me@...>

Hi,

10 messages 2011/08/31

[#387212] GUI programming — Samuel Mensah <sasogeek@...>

Is ruby GUI programming something that will come along as I study ruby

19 messages 2011/08/31
[#387230] Re: GUI programming — Alexey Petrushin <axyd80@...> 2011/08/31

I believe right now it's better to stay with console, there's no Ruby

Re: Why this?

From: Christopher Dicely <cmdicely@...>
Date: 2011-08-14 00:56:02 UTC
List: ruby-talk #386618
On Sat, Aug 13, 2011 at 12:28 PM, =D0=9D=D0=B8=D0=BA=D0=BE=D0=BB=D0=B0=D0=
=B9 <Godsent@mail.ru> wrote:
>
>
> -------- Original Message --------
> Subject: =C2=A0 =C2=A0 =C2=A0 =C2=A0Why this?
> Date: =C2=A0 Sat, 13 Aug 2011 22:20:04 +0300
> From: =C2=A0 =D0=9D=D0=B8=D0=BA=D0=BE=D0=BB=D0=B0=D0=B9 <godsent@tut.by>
> To: =C2=A0 =C2=A0 ruby-talk@ruby-lang.org
>
>
>
> Hallow, can anybody explain me that?
> a =3D (10**2 + 5**2) =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0#=3D> =C2=A0125
> b =3D Math.hypot(10, 5)**2 =C2=A0 =C2=A0 =C2=A0 =C2=A0#=3D> =C2=A0125.0
> a =3D=3D b =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 #=3D>false
> a.to_f =3D=3D b =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0#=3D> =C2=A0false
> 125.0 =3D=3D 125 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0#=3D> =C2=A0true
> 125.0.to_f =3D=3D 125 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 #=3D> =C2=A0true

The second result is the version of "inspect" bundled with your ruby
installation misleading you.

Ruby 1.9.2p180, via RubyInstaller, Win7 32-bit gives me:

irb(main):001:0> a=3D(10**2 + 5**2)
=3D> 125
irb(main):002:0> b=3DMath.hypot(10,5)**2
=3D> 125.00000000000001

IronRuby 1.1 gives me behavior that looks like what you see, but a
quick test shows that that "125.0" inspect value is skin deep:

irb(main):001:0>  b=3DMath.hypot(10,5)**2
=3D> 125.0
irb(main):002:0> b<=3D>125.0
=3D> 1
irb(main):003:0> b=3D=3D125.00000000000001
=3D> true

More generally, you are generally in deep trouble when you count on
floating point calculations producing exact results.

In This Thread