On Wed, Apr 22, 2009 at 08:26:51PM -0700, Ben Bolker wrote:
>
> ??? octave is a Matlab clone, not a Mathematica clone (I would be
> interested in an open source Mathematica clone ...) ???
>
You might take a look at Sage. It is not a mathematica clone, but
open source mathematical software which has a development community
similar to that of R.
http://www.sagemath.org/
albyn
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