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
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,
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 Thu, May 20, 2010 at 10:41 AM, Jason Grout
jason-s...@creativetrax.com 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
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 went
On Thu, May 20, 2010 at 11:33 AM, Nathann Cohen nathann.co...@gmail.com 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
On Thu, May 20, 2010 at 11:37 AM, Mike Hansen mhan...@gmail.com wrote:
On Thu, May 20, 2010 at 11:33 AM, Nathann Cohen nathann.co...@gmail.com
wrote:
Hello !
* As a language, Python is vastly superior to R. Python has good
support for object oriented programming, a very wide selection
You can do this with numpy arrays:
White flag ;-)
Nathann
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On Thu, May 20, 2010 at 11:47 AM, Nathann Cohen nathann.co...@gmail.com 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
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).
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
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.
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:
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)
Thanks!
On May 20, 6:19 pm, Robert Bradshaw rober...@math.washington.edu
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
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
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
that
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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On Thu, May 20, 2010 at 6:06 PM, kcrisman kcris...@gmail.com 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
Hi Laurent,
On Fri, May 21, 2010 at 1:12 AM, Laurent moky.m...@gmail.com 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
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