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

[Oz N. T. <na...@gm...>]

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)


Any help would be appreciated,

Thanks in advance,

Oz