On Tue, Jun 10, 2008 at 9:31 AM, cesarnda <[EMAIL PROTECTED]> wrote:
>
> I want to create a matrices set but I get the following error if I use
> the Set command:
> sage: setMat = Set(m)
> ---------------------------------------------------------------------------
> TypeError                                 Traceback (most recent call
> last)
>
> /home/cesarnda/<ipython console> in <module>()
>
> /home/cesarnda/Sage/sage-3.0.2-debian32-intelx86-i686-Linux/local/lib/
> python2.5/site-packages/sage/sets/set.py in Set(X)
>     76
>     77     if isinstance(X, Element):
> ---> 78         raise TypeError, "Element has no defined underlying
> set"
>     79     elif isinstance(X, (list, tuple, set, frozenset)):
>     80         return Set_object_enumerated(frozenset(X))
>
> TypeError: Element has no defined underlying set
>
> and if I use the set command I get:
> sage: setMat = set(m)
> ---------------------------------------------------------------------------
> TypeError                                 Traceback (most recent call
> last)
>
> /home/cesarnda/<ipython console> in <module>()
>
> /home/cesarnda/free_module_element.pyx in
> sage.modules.free_module_element.FreeModuleElement.__hash__ (sage/
> modules/free_module_element.c:2570)()
>
> TypeError: mutable vectors are unhasheable
>
> How can I solve this problem?

What exactly is m?  By "Matrices set" do you mean a
"set of matrices"?

William

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