Mrvasympt

MrvAsympt algorithm to find asymptotic expansion.
On Mon, Jun 16, 2014 at 09:01:45AM -0700, Avichal Dayal wrote:
>    Actually, I guess logx parameter is not necessary for aseries.

(I don't think it's necessary for series methods as well...)

If you think so - try to remove this option.

>    Also in series method, Line 2393,
> 
>      if x0 in [S.Infinity, S.NegativeInfinity]:
>      dir = {S.Infinity: '+', S.NegativeInfinity: '-'}[x0]
>      s = self.subs(x, 1/x).series(x, n=n, dir=dir)
> 
>    When x0=oo, it doesn't pass logx parameter and keeps it as None.
>    But I'm not sure if this is a bug or intentional?

At the time of writting e1c7bf4, there was no logx parameter for the
series method.  So, I'm not sure if this was intentional.  Probably,
you can ask @smichr too.