From: David MacMahon <davidm@...>
Date: 2014-09-16T21:43:01-07:00
Subject: [ruby-core:65075] Re: [ruby-trunk - Feature #10225] [PATCH]	*math.c: New method Math.normcdf


On Sep 16, 2014, at 4:14 PM, mail@tanakakazuki.com wrote:

> Actually I know that gem(how nice it is!), I'm disconsolate about a few people knowing that gem.

The gsl gem has its issues (memory management and it can be kind of clunky to use sometimes), but it really does provide a great deal of numerical functionality.

> Even if Ruby/GSL is as strong as python's one, most of people(include me) don't use it.
> 
> As for numerical analysis, stability, accuracy or reliability are most important things.

Is the GSL itself somehow deficient for your needs?  It is also an open source project, so I'm (almost) sure patches would be welcome.  Ruby/GSL is also open source, though admittedly under-maintained. :-(

> In this respect, I believe that to provide such a feature "as official" is helpful.

I agree that having numerical capabilities better supported would be a great thing, but I'm not sure that the Math module is the best place to do so.  There are so many things that could be added!  Where would it end? :-)

Dave