> < ^ Date: Fri, 03 Apr 1998 13:44:10 +0200 (MET DST)
^ From: Andrea Previtali <prevital@mail.dm.unipi.it >
> ^ Subject: Matrix vector spaces

I defined a vector space V generated by a list of independent matrices and
would like them to be its basis. The few examples I worked out always
confirmed that the list used to define V coincides with the list generated
by the command Base.
is that really always the case?

Set ba:=Base(V) (by the way, I noticed that Basis(V) is not recognized).
Trying to determine the Coefficients of v in V wrt ba as
Coefficients(ba,v), I got an error message, and trying with
Coefficients(V,v) I get a list containing scalars AND the zero matrix in
Is there a way to get only scalars?

Bye, Andreas


Andrea Previtali                           Dip. Matematica ufficio #134
Via Pardini 14/A                           Via F. Buonarroti, 2 56127 Pisa
Torre del Lago (LU)			   tel +39-50-844268	  

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