On Sun, Feb 26, 2012 at 4:59 PM, Joel B. Mohler wrote:
> On Feb 26, 7:35 pm, "Joel B. Mohler" wrote:
>> After having been a heavy sage user for several years, I now have
>> virtually not touched it for several more years. Returning now on a
>> lark, I'm feeling rather confused because I'd think
On Feb 26, 2012, at 17:13 , William Stein wrote:
> On Sunday, February 26, 2012, Joel B. Mohler wrote:
>> On Feb 26, 7:35 pm, "Joel B. Mohler" wrote:
>>> After having been a heavy sage user for several years, I now have
>>> virtually not touched it for several more years. Returning now on a
>>
On Feb 27, 6:26 am, Jason Grout wrote:
> How about the matrix constructor reads from an iterator and recognizes
> csv? We could even use the numpy savetxt and loadtxt functions to more
> sophisticated parsing.
You can already do:
sage: import csv
sage: M=matrix(RR,list(csv.reader(open("m.csv"))
On 2/27/12 10:43 AM, P Purkayastha wrote:
On Monday, February 27, 2012 10:27:29 PM UTC+8, Jason Grout wrote:
See http://www.sagemath.org/doc/reference/sage/matrix/docs.html#indexing
That's awesome! I didn't know all of that was possible!
We tried to make it accessible by giving it its
On Monday, February 27, 2012 10:27:29 PM UTC+8, Jason Grout wrote:
>
> See http://www.sagemath.org/doc/reference/sage/matrix/docs.html#indexing
>
>
> That's awesome! I didn't know all of that was possible!
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On 2/26/12 7:13 PM, William Stein wrote:
Um, isn't sage 4.3 ancient?
From http://sagemath.org/src-old/, it was released on Christmas Eve, 2009.
Jason
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On 2/24/12 1:32 PM, Volker Braun wrote:
We do get questions about "how to read matrix from csv" quite regularly.
Of course its just a few lines of code, but I think it would be nice to
have a matrix_from_file('fname.csv') function that imports csv and
perhaps others (gnumeric/ooffice/excel). Any
On 2/26/12 1:37 PM, Albert wrote:
Hi Sage-Team,
I have an idea, what might be useful for Sage. There is the command
submatrix, which gets a starting column and a starting row and the
number of columns and rows that you want to have for that submatrix
after the starting point. Wouldn't it be more
On 2012-02-27 01:58, D. S. McNeil wrote:
>> sage: K.=QuadraticField(-1)
>> sage: ((I+1)*(I+1)).factor()
>
> This may have been fixed since the last time you looked at Sage: what
> version are you running? It seems to work for me in both 4.8 and 5.0
> beta.
>
> sage: K.=QuadraticField(-1)
> sage:
