[#26488] Add Standard Deviation Function to Math Module — Daniel Cohen <danielc2017@...>

This patch adds a Standard Deviation function to the Math Module. It takes

25 messages 2009/11/02
[#26489] Re: Add Standard Deviation Function to Math Module — Yukihiro Matsumoto <matz@...> 2009/11/03

Hi,

[#26490] Re: Add Standard Deviation Function to Math Module — Daniel Cohen <danielc2017@...> 2009/11/03

OK,

[#26493] Re: Add Standard Deviation Function to Math Module — Yukihiro Matsumoto <matz@...> 2009/11/03

Hi,

[#26511] Re: Add Standard Deviation Function to Math Module — Yusuke ENDOH <mame@...> 2009/11/03

Hi,

[#26492] HashWithIndifferentAccess to core — Urabe Shyouhei <shyouhei@...>

Hello,

35 messages 2009/11/03
[#26496] Re: HashWithIndifferentAccess to core — Yukihiro Matsumoto <matz@...> 2009/11/03

Hi,

[#26507] Re: HashWithIndifferentAccess to core — Jeremy Kemper <jeremy@...> 2009/11/03

On Tue, Nov 3, 2009 at 6:48 AM, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:

[#26514] Re: HashWithIndifferentAccess to core — "Martin J. Dst" <duerst@...> 2009/11/04

Just a thought: What about implementing this with an option on Hash:new,

[#26522] Re: HashWithIndifferentAccess to core — Yusuke ENDOH <mame@...> 2009/11/04

Hi,

[#26555] Re: HashWithIndifferentAccess to core — Yukihiro Matsumoto <matz@...> 2009/11/05

Hi,

[#26584] Re: HashWithIndifferentAccess to core — Yugui <yugui@...> 2009/11/07

2009/11/6 Yukihiro Matsumoto <matz@ruby-lang.org>:

[#26589] Re: HashWithIndifferentAccess to core — Yukihiro Matsumoto <matz@...> 2009/11/07

Hi,

[#26593] Re: HashWithIndifferentAccess to core — Lourens Naud<lourens@...> 2009/11/07

Hi,

[#26523] [Bug #2330] Non systematic segmentation fault with autoload rubyspec — Marc-Andre Lafortune <redmine@...>

Bug #2330: Non systematic segmentation fault with autoload rubyspec

12 messages 2009/11/04

[#26560] [Feature #2340] Removing YAML/Syck — Yui NARUSE <redmine@...>

Feature #2340: Removing YAML/Syck

38 messages 2009/11/06
[#26562] [Feature #2340] Removing YAML/Syck — Yui NARUSE <redmine@...> 2009/11/06

Issue #2340 has been updated by Yui NARUSE.

[#26567] Re: [Feature #2340] Removing YAML/Syck — James Edward Gray II <james@...> 2009/11/06

On Nov 6, 2009, at 4:02 AM, Yui NARUSE wrote:

[#26568] Re: [Feature #2340] Removing YAML/Syck — Jon <jon.forums@...> 2009/11/06

> > Issue #2340 has been updated by Yui NARUSE.

[#26571] Re: [Feature #2340] Removing YAML/Syck — "NARUSE, Yui" <naruse@...> 2009/11/06

Jon wrote:

[#26574] Re: [Feature #2340] Removing YAML/Syck — Aaron Patterson <aaron@...> 2009/11/06

On Sat, Nov 07, 2009 at 12:59:25AM +0900, NARUSE, Yui wrote:

[#26635] [Feature #2348] RBTree Should be Added to the Standard Library — James Gray <redmine@...>

Feature #2348: RBTree Should be Added to the Standard Library

20 messages 2009/11/08
[#28842] [Feature #2348] RBTree Should be Added to the Standard Library — James Gray <redmine@...> 2010/03/21

Issue #2348 has been updated by James Gray.

[#26650] [Feature #2350] Unicode specific functionality on String in 1.9 — Manfred Stienstra <redmine@...>

Feature #2350: Unicode specific functionality on String in 1.9

12 messages 2009/11/09
[#28985] [Feature #2350](Rejected) Unicode specific functionality on String in 1.9 — Yusuke Endoh <redmine@...> 2010/03/25

Issue #2350 has been updated by Yusuke Endoh.

[#28993] Re: [Feature #2350](Rejected) Unicode specific functionality on String in 1.9 — Nikolai Weibull <now@...> 2010/03/25

On Thu, Mar 25, 2010 at 14:45, Yusuke Endoh <redmine@ruby-lang.org> wrote:

[#26704] Maintainer confirmation process done. — "Yugui (Yuki Sonoda)" <yugui@...>

I'm sorry for my closing the maintainer confirmation process so late.

13 messages 2009/11/12

[#26736] [Bug #2365] Matrix: poor handling of coercion errors [patch] — Marc-Andre Lafortune <redmine@...>

Bug #2365: Matrix: poor handling of coercion errors [patch]

12 messages 2009/11/14

[#26772] [Bug #2378] Regression in ParseDate.parsedate('nn-nn') — Vladimir Sizikov <redmine@...>

Bug #2378: Regression in ParseDate.parsedate('nn-nn')

10 messages 2009/11/16

[#26774] Ruby constant lookup — Yehuda Katz <wycats@...>

Over the past six months or so, I have been working with the new Ruby 1.9

22 messages 2009/11/16
[#26775] Re: Ruby constant lookup — Shugo Maeda <shugo@...> 2009/11/17

Hi,

[#26777] Re: Ruby constant lookup — Yehuda Katz <wycats@...> 2009/11/17

Shugo,

[#26778] Re: Ruby constant lookup — Shugo Maeda <shugo@...> 2009/11/17

Hi,

[#26869] Caching #to_s for immutables (and a possible future for constant-folding) — Kurt Stephens <ks@...>

I have a proof-of-concept patch to MRI that caches #to_s values for

16 messages 2009/11/23
[#26936] Re: Caching #to_s for immutables (and a possible future for constant-folding) — Roger Pack <rogerdpack@...> 2009/11/29

> t reduces the number of #to_s Strings created during the MRI test suite

[#26958] Re: Caching #to_s for immutables (and a possible future for constant-folding) [with patch] — Kurt Stephens <ks@...> 2009/11/30

The attached patch add caching of #to_s results to the main immutable

[#26960] Re: Caching #to_s for immutables (and a possible future for constant-folding) [with patch] — Roger Pack <rogerdpack@...> 2009/11/30

> Yes. he MRI test suite runs at 45 sec with these changes and at 53 sec

[#26963] Re: Caching #to_s for immutables (and a possible future for constant-folding) [with patch] — Kurt Stephens <ks@...> 2009/11/30

I just ran rubyspec against it; ~ 5% time improvement.

[ruby-core:26657] [Bug #2189] Math.atanh(1) & Math.atanh(-1) should not raise an error

From: Marc-Andre Lafortune <redmine@...>
Date: 2009-11-10 01:19:30 UTC
List: ruby-core #26657
Issue #2189 has been updated by Marc-Andre Lafortune.


Hi,

2009/11/9 Yukihiro Matsumoto <matz@ruby-lang.org>:
> Forgive my ignorance but what is a pole error in practical UNIX
> programing sense.  On my Linux box, atanh document only describes EDOM
> to be raised.  Does that mean, atanh on Linux not following SUSv3?

Apparently not, at least according to the reference I found online:
http://www.opengroup.org/onlinepubs/009695399/functions/atanh.html
http://www.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap04.html#tag_04_18_02

> In that case, when underlying Linux does not, should we?

This it the most pertinent question.

Should Ruby tend towards being an interface to Unix, or tend towards being a platform.

By being a platform, I mean that a rubyist can expect to be shielded as much as possible from the differences due to its environment and can expect the same result no matter which OS Ruby runs on, or even which implementation of Ruby it is running on.

I believe it is best to keep the platform dependent methods to a strict minimum (when it is unavoidable or when it is useful) and make the best "universal" choices for the rest. 

Maybe because of my background in mathematics, but I hope it is decided that Ruby can deal with infinity. Maybe there can be a mechanism to trap Infinities (Math.log(0) and 1.0/0 as well), but I hope that by default these return infinities.

I noticed yesterday that the BigDecimal library has such a mechanism. I don't personally like it much, but I thought it should be mentioned.

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