On Wed, Mar 28, 2012 at 7:12 PM, Nicolas Cellier <nicolas.cellier.aka.n...@gmail.com> wrote: > Le 28 mars 2012 14:44, Alexandre Bergel <alexandre.ber...@me.com> a écrit : > >> Hi Serge! >> >> I welcome very much this initiative. >> Something that I believe is important, is an pdf graph exporter (maybe >> based on EyeSee) and the various test distribution (e.g., CHI). The fact >> that these two are missing is exactly the reason why I use R and Numbers >> instead of Pharo. >> >> I sincerely believe that Pharo can be an alternative to R and Maple. A bit >> more is needed from our side however. >> >> Alexandre >> > > Great initiative Serge, bravo.
Thank you Nicolas. > Yes Pharo could replace some parts of R/Maple/Matlab etc... but that's a > tremendous work. > > So please, small steps, bring up basic bricks first. Yes i agree that we need to work in baby steps. Having a good infrastructure and developing a community is also important. > I have unpublished Smalltalk utility libraries for handling Euler (Cardan) > angles, geodetic coordinates, geodesic and rhumb lines calculation on the > ellispoid... > For Euler angles, the main features are conversions to/from direction cosine > matrices and quaternions, so it's more a problem of package delimitations > and which matrix class to use, generic m x n, or specialised SO3... > > Also, some higher level objects could be used (vector space, trihedron, > etc...), but basic steps first. Great ! Maybe you can help me as the second tutor ? Regards, -- Serge Stinckwich UMI UMMISCO 209 (IRD/UPMC), Hanoi, Vietnam Every DSL ends up being Smalltalk http://doesnotunderstand.org/
