Re: Sorting multi-dimensional vectors

[Karim BELABAS <Karim.Belabas@math.u-psud.fr>]

On Sun, 15 Jun 2003, Bill Allombert wrote:
> On Sun, Jun 15, 2003 at 05:47:16PM +0100, Jon Perry wrote:
> > I wish to sort a vector, e.g.
> >
> > [[1,2],[2,3],[1,3]]
> >
> > All the inner vectors are the same length, and the order returned should be;
> >
> > [[1,2],[1,3],[2,3]]
> ? vecsort([[1,2],[2,3],[1,3]],2)
> %1 = [[1, 2], [1, 3], [2, 3]]

Replace (,2) by (,/*empty*/,2)

Your example sorts according to second component of each entry [ happens to
be correct on this example, but... ].

Cheers,

    Karim.
-- 
Karim Belabas                     Tel: (+33) (0)1 69 15 57 48
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Université Paris-Sud              http://www.math.u-psud.fr/~belabas/
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