QM and Mathematica

["Pablo Vitoria" <qibvigap;at;lg.ehu.es>]

 Hi all,
 I am attending a graduate course in magnetism (molecular and extended), and
 I would like to do some work and exercises in Mathematica. I wonder if
 somewhere out there in the Net there is a Notebook (or package) with stuff
 like operators, spin functions, ... already defined. I mean, for example, a
 package to calculate matrix elements of Sz, LzSz,... or other operators.
 Thank you very much for any information
 Pablo
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 Pablo Vitoria Garcia
 Dpto. Quimica Inorganica, Facultad de Ciencias
 Universidad del Pais Vasco (UPV/EHU)
 Aptdo. 644
 E-48080 Spain
 Phone: +34 94 6012000 Ext. 5529
 Fax: +34 94 4648500
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