I will try, it is Ubuntu on a Vbox and apt-get will probably work, not yet
it is sagemath to install not sage?!
Hmm, that succeeded, but if I read it all correct it is version 3.0.5 (2008
??!!) and that I used is 4.2.1 ..
And version 3.0.5 is (for a UBUNTU) newbie not correct, it can not plot
e.g..
I think I will remove it .. (freeing probably nearly 1GB)
Greetings
Peter
2010/2/2 Jason Grout <jason-s...@creativetrax.com>
> On 02/02/2010 03:57 AM, Peter K.H. Gragert wrote:
>
>> Hi,
>> the second solution is indeed very nice.
>> I tested with
>> A = Matrix(QQ, 2,3, [1,2,3,4,5,6]);A
>> giving:
>> [1 2 3]
>> [4 5 6]
>> res=[A[rows,cols] for cols in Combinations(A.ncols(),2) for rows in
>> Combinations(A.nrows(),2)];res
>>
>>
>> [[1 2]
>> [4 5], [1 3]
>> [4 6], [2 3]
>> [5 6]]
>>
>> this is more or less my question this output is not really readable
>> though correct.
>> for i in range(len(res)):print res[i].det()
>>
>> -3
>> -6
>> -3
>> A.minors(2)
>> [-3, -6, -3]
>>
>> And some different, how do Ishow output easier, is HERE a possibility to
>> show a picture (screen capture) of sage-sheet?
>>
>>
>
> You can upgrade your sage in order to take advantage of the nice printing
> you saw in our output:
>
>
> sage: A = Matrix(QQ, 2,3, [1,2,3,4,5,6]);A
>
> [1 2 3]
> [4 5 6]
> sage: res=[A[rows,cols] for cols in Combinations(A.ncols(),2) for rows in
> Combinations(A.nrows(),2)];res
> [
> [1 2] [1 3] [2 3]
> [4 5], [4 6], [5 6]
> ]
> sage: [det(m) for m in res]
> [-3, -6, -3]
>
> Thanks,
>
> Jason
>
>
>
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