(and about the [Cc]artesian(_)?[Pp]roduct function, there are some other
issues there
: https://groups.google.com/d/msg/sage-devel/tyAxhqxk3ZI/rff7pTrGIQ4J Of
course I don't want to abusively take the reader's attention off this
symmetry bug, which definitely has to be fixed >_<)
On Friday, November 15, 2013 4:43:19 AM UTC+1, vdelecroix wrote:
>
> Hi,
>
> For me it is a bug: the behavior of cartesian_product (not
> CartesianProduct) is not symmetric...
> {{{
> sage: C1 = cartesian_product([FiniteEnumeratedSet('abc'),ZZ])
> The cartesian product of ({'a', 'b', 'c'}, Integer Ring)
> sage: C1
> sage: C1.an_element()
> ('a', 1)
> }}}
> but
> {{{
> sage: cartesian_product([ZZ,FiniteEnumeratedSet('abc')])
> Traceback (most recent call last):
> ...
> AttributeError: type object
> 'sage.rings.integer_ring.IntegerRing_class' has no attribute
> 'CartesianProduct'
> }}}
> And by the way, why CartesianProduct still exist ?
>
> I would be happy to fix that if I know what to do.
>
> Best,
> Vincent
>
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