Hi Laurent,
On Fri, May 21, 2010 at 1:12 AM, Laurent wrote:
> Ciao tutti !
>
>
> I remember to have read somewhere that the Sage's community has a list of
> math documents using or citing Sage.
A list of publications citing Sage is available here [1]. The bottom
of that page is a section on how
On Thu, May 20, 2010 at 6:06 PM, kcrisman wrote:
>> Is anyone working on improving the Sage -> R integration?
>
> Yes. There are a number of tickets with some progress on them.
>
>>
>> Making Sage good for statistics, would probably do far more to increase the
>> user
>> base of Sage than improv
sage: diff(gamma(x))
gamma(x)*psi(x)
sage: psi(1)
NameError: name 'psi' is not defined
Now is that cheeky or what - Sage giving an answer with a function
which is "not defined"!
-Alasdair
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> Is anyone working on improving the Sage -> R integration?
Yes. There are a number of tickets with some progress on them.
>
> Making Sage good for statistics, would probably do far more to increase the
> user
> base of Sage than improving graph theory, algebra or number theory. My logic
> for
On 05/20/10 06:41 PM, Jason Grout wrote:
On 5/20/10 9:56 AM, David Kirkby wrote:
I gave a talk last night at the London Open Solaris User Group (LOSUG)
with the title "Porting Sage open source mathematics software to
OpenSolaris". I've stuck a copy of the presentation at
http://boxen.math.washi
Thanks!
On May 20, 6:19 pm, Robert Bradshaw
wrote:
> On May 20, 2010, at 3:15 PM, VictorMiller wrote:
>
> > Does the Matrix class have methods for vertical and horizontal joins
> > of matrices (as in Magma)? That is
>
> > if A is an m by n matrix and B is an r by n matrix then
> > VerticalJoin
On 05/20/2010 05:19 PM, Robert Bradshaw wrote:
On May 20, 2010, at 3:15 PM, VictorMiller wrote:
Does the Matrix class have methods for vertical and horizontal joins
of matrices (as in Magma)? That is
if A is an m by n matrix and B is an r by n matrix then
VerticalJoin(A,B) would by the (m+r) b
On 05/20/2010 01:33 PM, Nathann Cohen wrote:
The
manipulation of matrices in R is just amazing. If you want to strip
all the negative values contained in a matrix M, you but have to write
M * (M> 0). How easier can it et ?
Here is the amazing numpy at work:
sage: a=random_matrix(ZZ,5).numpy
On May 20, 2010, at 3:15 PM, VictorMiller wrote:
Does the Matrix class have methods for vertical and horizontal joins
of matrices (as in Magma)? That is
if A is an m by n matrix and B is an r by n matrix then
VerticalJoin(A,B) would by the (m+r) by n matrix with A "on top" and B
"on the bottom
Does the Matrix class have methods for vertical and horizontal joins
of matrices (as in Magma)? That is
if A is an m by n matrix and B is an r by n matrix then
VerticalJoin(A,B) would by the (m+r) by n matrix with A "on top" and B
"on the bottom". Similarly, if A is m by n and B is m by r then
H
Hi,
I do quantum mechanics and a lot of time i work with expressions
containing creation and annihilation operators. For example, I would
like to expand a formula (a+A)^2, A is a-dagger. Normal answer would
be a^2+2aA+A^2' but it's not correct since a and A are non-commuting
(Lie Algebra). Moreover
On Thu, May 20, 2010 at 11:47 AM, Nathann Cohen wrote:
>> You can do this with numpy arrays:
>
> White flag ;-)
>
> Nathann
An email from you with no explanation points (!). Moreover, your
email about R also had no explanation points: "Just a few words on
that one... I have had to stand statisti
> You can do this with numpy arrays:
White flag ;-)
Nathann
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On Thu, May 20, 2010 at 11:37 AM, Mike Hansen wrote:
> On Thu, May 20, 2010 at 11:33 AM, Nathann Cohen
> wrote:
>> Hello !
>>
>>> * As a language, Python is vastly superior to R. Python has good
>>> support for object oriented programming, a very wide selection of
>>> existing programs and
On Thu, May 20, 2010 at 11:33 AM, Nathann Cohen wrote:
> Hello !
>
>> * As a language, Python is vastly superior to R. Python has good
>> support for object oriented programming, a very wide selection of
>> existing programs and libraries, and supports threads for handling
>> realtime data.
Hello !
> * As a language, Python is vastly superior to R. Python has good
> support for object oriented programming, a very wide selection of
> existing programs and libraries, and supports threads for handling
> realtime data. I recently read a paper about massive contortions
> somebody
On Thu, May 20, 2010 at 10:41 AM, Jason Grout
wrote:
> On 5/20/10 9:56 AM, David Kirkby wrote:
>>
>> I gave a talk last night at the London Open Solaris User Group (LOSUG)
>> with the title "Porting Sage open source mathematics software to
>> OpenSolaris". I've stuck a copy of the presentation at
Is there any way to make the square root of -1 display lower case
i rather than I (at least for latex output)?
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On 5/20/10 9:56 AM, David Kirkby wrote:
I gave a talk last night at the London Open Solaris User Group (LOSUG)
with the title "Porting Sage open source mathematics software to
OpenSolaris". I've stuck a copy of the presentation at
http://boxen.math.washington.edu/home/kirkby/talks/Sage-LOSUG-19-
Ciao tutti !
I remember to have read somewhere that the Sage's community has a list
of math documents using or citing Sage.
So, here is my contribution (in French) :
http://student.ulb.ac.be/~lclaesse/geog.pdf
This is ~200 exercise and corrections about general mathematics : vector
spaces,
I gave a talk last night at the London Open Solaris User Group (LOSUG)
with the title "Porting Sage open source mathematics software to
OpenSolaris". I've stuck a copy of the presentation at
http://boxen.math.washington.edu/home/kirkby/talks/Sage-LOSUG-19-5-2010--by-David-R-Kirkby.odp
The talk ge
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