On Wed, Nov 11, 2009 at 9:27 AM, John Cremona <john.crem...@gmail.com> wrote:
>
> I am using 4.2.1.alpha0 which built fine and all tests passed o n64-
> bit ubuntu. Here's an example of the message:
>
> {{{
> j...@selmer%sage
> ----------------------------------------------------------------------
> | Sage Version 4.2.1.alpha0, Release Date: 2009-11-09 |
> | Type notebook() for the GUI, and license() for information. |
> ----------------------------------------------------------------------
> **********************************************************************
> * *
> * Warning: this is a prerelease version, and it may be unstable. *
> * *
> **********************************************************************
> sage: E = EllipticCurve('14a1')
> sage: E.isogeny_graph()
> sh: kpsewhich: not found
> sh: kpsewhich: not found
kpsewhich is part of tex. You might want to install tex if you just
want to make this problem
go away.
> Graph on 6 vertices
> }}}
>
> Is this caused by this system not having some graphics thing installed
> (which I expect that it doesn't)? The normal behaviour would be to
> opo up a window with a picture in it. However,
> {{{
> sage: t = E.isogeny_graph()
> sage: t
> Graph on 6 vertices
> sage: t.show()
> }}}
> produces no error message (and no picture either).
That's not good. I wonder if matplotlib is somehow depending on latex
to typeset certain labels, and has no fallback?
-- William
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