On Friday, May 3, 2019 at 11:18:40 PM UTC-7, Daniel Krenn wrote:
>
> On 04.05.19 06:04, Andrew wrote:
> > The `Permutation` function is more general. For example, the folllowing
> > all work: [...]
>
> Thank you. But sorry, this does not answer my question. Maybe I should
> be more precise:
>
> What is the idea behind
> |
> sage: Permutation([5,4,3,2,1]).parent()
> Standard permutations
> sage: Permutation('(1,5)(2,4)(3)').parent()
> Standard permutations of 5
> |
> returning different parents? (I.e. why the diffent parent depending on
> the input format?)
>
Not an answer, but similar examples:
sage: Permutation([1,2,3]).parent() # list
Standard permutations
sage: Permutation((1,2,3)).parent() # tuple
Standard permutations of 3
sage: Permutation('[1,2,3]').parent() # string
Standard permutations of 3
sage: Permutation('(1,2,3)').parent() # string
Standard permutations of 3
I don't know why, but I can see in the code that if you pass a list of
integers, it calls "Permutations()([...])", whereas the most of the other
cases do something else.
--
John
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