Hi,
I am solving a problem where I want know that whether certain vertices on a
hyperplane are connected to each other or not (i.e there exists an edge
between two vertices). Say in a 2D plane, if I have 3 or more vertices
(points), how can I decide that if all or some of these vertices are
On 03/04/2013 11:10 AM, Jeroen Demeyer wrote:
> Fair enough, but what if I want the "domain: real" behaviour in Sage? In
> other words, what should do to have (abs(cos(t))^2).simplify() return
> "cos(t)^2"?
>
> sage: maxima('domain: real;')
> real
> sage: var("t")
> t
> sage: assume(t, "real")
> s
On 4 March 2013 17:51, Dan Aldrich wrote:
> I've been using Sage for about 3 years now. One thing that hit me was when I
> got into the 3rd year Electrical Engineering classes, my Matlab usage was
> increasing because professors wanted all homework done in Matlab not Sage.
This is not surprising,
Hi Jason,
Thanks for your quick response. I did try both the url's but the same
problem occurs.
It seems that yesterdays worksheets are under the account aniruddh_gandhi
and I can't access this from either url.
Cheers,
Aniruddh.
On Tuesday, March 5, 2013 11:21:26 AM UTC+13, Jason Grout wro
On 3/4/13 4:15 PM, agan014 wrote:
I created an account on sagenb.org yesterday and used open id (google) to log
in.
Now when I try to login using the same credentials, I an not being logged into
the same account. Probably a problem with my google open id being linked to
different accounts.
C
Hi, Luis.
On Mon, Mar 4, 2013 at 1:55 PM, Luis Finotti wrote:
> Since this is not my area (and I have not used MATLAB) I thought I should ask
> in case some
> have experience with both.
Please, don't take my word too seriously, as I am a very light user of
these things, but, as a last resort, y
I created an account on sagenb.org yesterday and used open id (google) to log
in.
Now when I try to login using the same credentials, I an not being logged into
the same account. Probably a problem with my google open id being linked to
different accounts.
Could some sagenb admin help out sinc
On 3/4/13 1:54 PM, Luis Finotti wrote:
On Monday, March 4, 2013 2:42:48 PM UTC-5, Dr. David Kirkby wrote:
I think Sage would have a hard job breaking into the MATLAB
strongholds in engineering. It is used to control a lot of instruments
and data collection.
Agilent, who are p
Le samedi 2 mars 2013 17:00:15 UTC+1, Emmanuel Charpentier a écrit :
[ An idiocy ... ]
[ Snip... ]
> Since s1 is irst-degree equation in t, this is the only real
> nonnegative maximum (it is easy to show that there is no negative
> maximum).
> Now, try brute force via the to_poly_solve solver
On Monday, March 4, 2013 2:42:48 PM UTC-5, Dr. David Kirkby wrote:
>
>
> I think Sage would have a hard job breaking into the MATLAB
> strongholds in engineering. It is used to control a lot of instruments
> and data collection.
>
> Agilent, who are probably the world's premier test equipment
On 4 March 2013 16:55, Luis Finotti wrote:
> Dear all,
>
> I will give a couple of informal talks on Sage. A question that will
> certainly be asked is how Sage compares with MATLAB, probably in regards of
> performance and functionality in modeling and other applied math
> applications.
I think
I know this is probably not so important in the grand scheme of things but
I was helping my DIL (daughter in law) with numerical maths class
(electrical engineer) and at every step I found Matlab/Octave with their
"major" commands obscured what was happening. For example, she needed to
approxim
I've been using Sage for about 3 years now. One thing that hit me was when I
got into the 3rd year Electrical Engineering classes, my Matlab usage was
increasing because professors wanted all homework done in Matlab not Sage.
Scipy have a decent library of signal processing functions. Matlab w
Dear all,
I will give a couple of informal talks on Sage. A question that will
certainly be asked is how Sage compares with MATLAB, probably in regards of
performance and functionality in modeling and other applied math
applications. (It seems that MATLAB is widely used here.) Since this is
On Mon, Mar 4, 2013 at 8:10 AM, Jeroen Demeyer wrote:
> Fair enough, but what if I want the "domain: real" behaviour in Sage? In
> other words, what should do to have (abs(cos(t))^2).simplify() return
> "cos(t)^2"?
>
> sage: maxima('domain: real;')
Use the maxima that the sage symbolics use:
wst
Fair enough, but what if I want the "domain: real" behaviour in Sage? In
other words, what should do to have (abs(cos(t))^2).simplify() return
"cos(t)^2"?
sage: maxima('domain: real;')
real
sage: var("t")
t
sage: assume(t, "real")
sage: (abs(cos(t))^2).simplify()
abs(cos(t))^2
--
You received th
On Monday, March 4, 2013 9:26:47 AM UTC-5, Jeroen Demeyer wrote:
>
> It seems that Maxima in Sage doesn't do some simplifications that plain
> Maxima does, why is this and how can this be fixed?
>
>
> Distributed under the GNU Public License. See the file COPYING.
> Dedicated to the memory of
It seems that Maxima in Sage doesn't do some simplifications that plain
Maxima does, why is this and how can this be fixed?
;;; Loading
#P"/release/sage-5.7-sage.math.washington.edu-x86_64-Linux/local/lib/ecl/sb-bsd-sockets.fas"
;;; Loading
#P"/release/sage-5.7-sage.math.washington.edu-x86_64-Lin
Why not use shuffle()?
On Monday 04 Mar 2013, Simon King wrote:
> Hi Gary,
>
> On 2013-03-04, GaryMak wrote:
> >> sage: Permutations(50).random_element()
> >> [11, 4, 30, 48, 49, 36, 22, 16, 27, 6, 44, 33, 13, 50, 9, 35, 15, 12,
> >> 26, 45, 1, 18, 2, 40, 19, 10, 28, 7, 37, 46, 25, 29, 34, 41, 3
Hi Gary,
On 2013-03-04, GaryMak wrote:
>> sage: Permutations(50).random_element()
>> [11, 4, 30, 48, 49, 36, 22, 16, 27, 6, 44, 33, 13, 50, 9, 35, 15, 12,
>> 26, 45, 1, 18, 2, 40, 19, 10, 28, 7, 37, 46, 25, 29, 34, 41, 38, 24, 8,
>> 20, 32, 21, 14, 23, 31, 47, 43, 17, 3, 39, 5, 42]
>
> I have a
On Saturday, March 5, 2011 5:42:21 AM UTC, Jason Grout wrote:
> On 3/4/11 11:38 PM, Santanu Sarkar wrote:
> > How one can generate random permutation over the set
> > A={1,2,...,50}?
> >
>
>
> I think this does it:
>
> sage: Permutations(50).random_element()
> [11, 4, 30, 48, 49, 36, 22, 16, 27,
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