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Re: diagonal matrices specializations
From: |
Søren Hauberg |
Subject: |
Re: diagonal matrices specializations |
Date: |
Wed, 03 Dec 2008 14:37:40 +0100 |
ons, 03 12 2008 kl. 14:31 +0100, skrev Jaroslav Hajek:
> >> ans =
> >> diagonal matrix (5x5)
> >> 1 .. 0
> >> 2
> >> : 3 :
> >> 4
> >> 0 .. 5
> >>
> >> the last form seems attractive, but maybe requires a bit more thinking
> >> about how to place the dots etc.
> >
> > This I don't think will work. It would be very hard to read a 20x20
> > matrix in a terminal with a width of 80 chars. But I agree, that it
> > looks nice for small matrices.
> >
>
> But anyone trying to work visually with 20x20 matrices on a 80-column
> terminal is bound to have problems.
Not if you print it like a vector, which I think we should just always
do.
> The problem with displaying a permutation is that there are two ways
> to view a permutation matrix:
> a column permutation matrix (multiplication from the right) and row
> permutation (multiplication from the left).
> Of course, any permutation matrix can act in both ways, with inverse
> permutations.
Good point, I thought of it like that.
Soren
- diagonal matrices specializations, Jaroslav Hajek, 2008/12/02
- Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/02
- Re: diagonal matrices specializations, Søren Hauberg, 2008/12/02
- Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/03
- Re: diagonal matrices specializations, Søren Hauberg, 2008/12/03
- Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/03
- Re: diagonal matrices specializations,
Søren Hauberg <=
- Re: diagonal matrices specializations, John W. Eaton, 2008/12/04
- Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/04
- Re: diagonal matrices specializations, Søren Hauberg, 2008/12/04
Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/04
- Re: diagonal matrices specializations, John W. Eaton, 2008/12/04
- Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/04
- Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/08
- Re: diagonal matrices specializations, John W. Eaton, 2008/12/09
- Re: diagonal matrices specializations, dbateman, 2008/12/09
- Re: diagonal matrices specializations, Jaroslav Hajek, 2008/12/10