buggy matrix inversion

Versions: Genius 0.4.5 and Genius 0.4.6

        genius> a=[3,1:2,1]

        =
        [3 1
         2 1]

        genius> 1/a
   
        =
        [1 -1
         -2 3]

        genius> a
    
        =
        [1 1
         2 1]

"1/a" is correct but "a00" term of "a" is modified !!!

As I work with genius since less than 10 minutes,
I apologize if this is a feature and not a bug.

Best regards and happy new year.

--
Fabrice Pardo L2M-CNRS         email: Fabrice.Pardo_at_L2m.cnrs.fr
196 av. Henri Ravera, BP 107   phone: 33 (0)1 4231 7563
92225 Bagneux CEDEX (FRANCE)     fax: 33 (0)1 4231 7378