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> ^ Subject:

I defined a vector space V generated by a list of independent matrices and

I

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

V.

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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