From: Steven Jenkins <steven.jenkins@...>
Date: 2005-07-08T22:50:48+09:00
Subject: Re: Ruby as mathematical language

Steven Jenkins wrote:
> One thing to bear in mind, however. Wrapping (whether with SWIG or not)
> often requires copying input and output parameters. That's usually not a
> big deal, but you might take a substantial performance hit if you're
> passing large numbers of large arrays through a wrapper.

I looked at gsl_matrix_float.h as an example, and I don't think it's a
problem. Barring any surprises, all the wrapping mechanics can be done
with pointers.

I just discovered that there are two different Ruby GSL's:

http://sourceforge.net/projects/ruby-gsl/
http://rb-gsl.rubyforge.org/

The former seems a little more modern. In particular, it uses
rb_define_class_under() to define the Matrix class. That may solve the
OP's problem right there.

Steve