On Thu, Sep 8, 2011 at 7:09 PM, Dima Pasechnik wrote:
>
>
> On Thursday, 8 September 2011 23:55:00 UTC+8, William wrote:
>>
>> On Thu, Sep 8, 2011 at 8:28 AM, Rado wrote:
>> > sage: L = [[2,4,16],[1/2,1,2],[1,1,1]]
>> > sage: A = matrix(RDF, L)
>> > sage: xvalues = [sqrt(2), 2, 4]
>> > sage: L2 =
On Sep 8, 6:02 pm, Sébastien Labbé wrote:
> Hi,
>
> I have been asked this question since more than a year by some people
> in Montpellier and also needed it myself to draw in tikz a 3d object
> with a projection I would choose using Jmol. I have now understood how
> to do it and wrote a post abou
On Thursday, 8 September 2011 23:55:00 UTC+8, William wrote:
>
> On Thu, Sep 8, 2011 at 8:28 AM, Rado wrote:
> > sage: L = [[2,4,16],[1/2,1,2],[1,1,1]]
> > sage: A = matrix(RDF, L)
> > sage: xvalues = [sqrt(2), 2, 4]
> > sage: L2 = [[i^2 for i in xvalues], [log(i, 2) for i in xvalues], [1 for
>
Hi,
I have been asked this question since more than a year by some people
in Montpellier and also needed it myself to draw in tikz a 3d object
with a projection I would choose using Jmol. I have now understood how
to do it and wrote a post about it here :
http://www.thales.math.uqam.ca/~labbes/bl
On Thu, Sep 8, 2011 at 9:07 AM, Jason Grout wrote:
> On 9/8/11 11:00 AM, William Stein wrote:
>>
>> On Thu, Sep 8, 2011 at 8:49 AM, Jason Grout
>> wrote:
>>>
>>> On 9/8/11 10:30 AM, Dima Pasechnik wrote:
we should also add that both A.solve_right and A.solve_left claim to
solve Ax=
On 9/8/11 11:00 AM, William Stein wrote:
On Thu, Sep 8, 2011 at 8:49 AM, Jason Grout wrote:
On 9/8/11 10:30 AM, Dima Pasechnik wrote:
we should also add that both A.solve_right and A.solve_left claim to
solve Ax=b...
Yep. solve_left should be solve_right, IIRC. See
http://trac.sagemath.o
On Thu, Sep 8, 2011 at 8:49 AM, Jason Grout wrote:
> On 9/8/11 10:30 AM, Dima Pasechnik wrote:
>>
>> we should also add that both A.solve_right and A.solve_left claim to
>> solve Ax=b...
>
>
> Yep. solve_left should be solve_right, IIRC. See
> http://trac.sagemath.org/sage_trac/ticket/7852. I t
On Thu, Sep 8, 2011 at 8:28 AM, Rado wrote:
> sage: L = [[2,4,16],[1/2,1,2],[1,1,1]]
> sage: A = matrix(RDF, L)
> sage: xvalues = [sqrt(2), 2, 4]
> sage: L2 = [[i^2 for i in xvalues], [log(i, 2) for i in xvalues], [1 for i
> in xvalues]]
> sage: A2 = matrix(RDF, L2)
> sage: print (A - A2).norm()
>
On 9/8/11 10:30 AM, Dima Pasechnik wrote:
we should also add that both A.solve_right and A.solve_left claim to
solve Ax=b...
Yep. solve_left should be solve_right, IIRC. See
http://trac.sagemath.org/sage_trac/ticket/7852. I think this was an
error from when I did the RDF switch to a numpy
we should also add that both A.solve_right and A.solve_left claim to solve
Ax=b...
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sage: L = [[2,4,16],[1/2,1,2],[1,1,1]]
sage: A = matrix(RDF, L)
sage: xvalues = [sqrt(2), 2, 4]
sage: L2 = [[i^2 for i in xvalues], [log(i, 2) for i in xvalues], [1 for i
in xvalues]]
sage: A2 = matrix(RDF, L2)
sage: print (A - A2).norm()
1.11022302463e-16
sage: b = vector(RDF, [5, 20, 106])
sag
Hi Rob, thanks for the tip. I didn't realise I could safely edit the
html in the sage_notebook.sagenb-directory. Will try that.
Cheers
Stan
On 23/08/11 18:38, Rob Beezer wrote:
On Aug 23, 6:56 am, Stan Schymanski wrote:
For me, this is the only useful way how to remove chunks from
large work
Do you also already have some timings to compare to the other solutions
(i.e. the two in your worksheet?)
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