Hi Shay,
On Sun, Sep 28, 2008 at 5:33 PM, Shay Mozes <[EMAIL PROTECTED]> wrote:
> I suspect there is a bug in the implementation of the vector function.
> It seems that when trying to construct a sparse vector by a dictionary
> sage simply ignores the keys. for example:
>
> sage: v = vector({3:1.1 , 5:3.14}); v
> (1.10000000000000, 3.14000000000000)
>
> where one would expect the behavior to be similar to matrix:
>
> sage: m = matrix({(0,3):1.1 , (0,5):3.14}); m
> [0.000000000000000 0.000000000000000 0.000000000000000
> 1.10000000000000 0.000000000000000 3.14000000000000]
>
> it seems to me that the problem is in prepare_dict (in
> free_module_element)
Thanks for pointing this out. I've made this ticket #4215 (
http://trac.sagemath.org/sage_trac/ticket/4215 ) and posted a patch
there.
--Mike
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