Re: [Pysparse-users] ambiguous error using solvers: TypeError: matvec() takes exactly 2 arguments (3 given)

[Dominique O. <dom...@gm...>]

On Mon, Jun 13, 2011 at 8:43 AM, Oz Nahum Tiram <na...@gm...> wrote:

> Hi *,
>
> I am trying to solve a simple sparse system and I get an unclear error.
> I have used the solvers before and never encoutered this error. Here is an
> example:
>
> In [505]: print A
> --------> print(A)
>  1.000000      ---        ---        ---        ---
>     ---     2.000000      ---        ---        ---
>     ---        ---     3.000000      ---        ---
>     ---        ---        ---     4.000000      ---
>     ---        ---        ---        ---     5.000000
>
> In [506]: print b
> --------> print(b)
> [ 1.  2.  3.  4.  5.]
>
> In [507]: b
> Out[507]: array([ 1.,  2.,  3.,  4.,  5.])
>
> In [508]: info, iter, relres = sp.itsolvers.bicgstab(A,b,x, tol, maxit)
> ---------------------------------------------------------------------------
> TypeError                                 Traceback (most recent call last)
>
> /home/ozdeb/aeg-master/python book/richards flow/RichardsPython/<ipython
> console> in <module>()
>
> TypeError: matvec() takes exactly 2 arguments (3 given)
>

Hi Oz,

What version of Pysparse are you using? Is this the Pysparse from Pypi or
one from SVN?

Thanks,

-- 
Dominique