On Oct 23, 2:21 pm, Simon King wrote:
> On 23 Okt., 14:15, Yann wrote:
>
> > this is now ticket #10158
>
> Thanks!
> Simon
And ready for review...
Yann
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On 23 Okt., 14:15, Yann wrote:
> this is now ticket #10158
Thanks!
Simon
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this is now ticket #10158
Yann
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Hi Yann!
On 23 Okt., 13:32, Yann wrote:
> ...
> In the matrix constructor (matrix in sage/matrix/constructor.py):
>
> entries = sum([list(v) for v in args[0]], []) <--- this is bad
> (quadratic in the length of argv[0] which is the number of rows here)
I guess this line will only be executed
> In the matrix constructor (matrix in sage/matrix/constructor.py):
>
> entries = sum([list(v) for v in args[0]], []) <--- this is bad
> (quadratic in the length of argv[0] which is the number of rows here)
and to be complete, this could be replaced by:
entries = []
for v in args[0]: entries.e
On Oct 23, 12:20 pm, Simon King wrote:
> Hi!
>
> On 23 Okt., 11:59, Simon King wrote:
>
> > So, one should create an empty matrix and then insert the elements row
> > by row.
>
> It it also more efficient on a smaller skale (and does the right
> thing):
>
> sage: MS = MatrixSpace(ZZ,100,50)
> s
Hi!
On 23 Okt., 11:59, Simon King wrote:
> So, one should create an empty matrix and then insert the elements row
> by row.
It it also more efficient on a smaller skale (and does the right
thing):
sage: MS = MatrixSpace(ZZ,100,50)
sage: L = [[ZZ.random_element() for _ in range(50)] for __ in
ra
Hi Robert!
On 23 Okt., 10:18, Robert Bradshaw
wrote:
> Can you run top() and see (1) how much CPU it's using and (2) how much
> memory it's using (compared to your free memory).
I doubt that memory is the problem. The following is on sage.math
(thus, with plenty of memory):
sage: %time L = [[ZZ
