Hi Boris,
Here is what I do:
# Define the variables:
var('GAMA BETA THETA')
# Create a dictionary with the parameter values for plotting:
pars = dict(GAMA=1,BETA=1,THETA=10)
# Define the symbolic function
J1(x) = GAMA*x + BETA*x^2 + THETA
# Substitute the parameters into the equation and plot it
This group is for education-related questions, so I'm cross-posting to
sage-support.
First, dio you know about the Lie manual at
http://www-math.univ-poitiers.fr/~maavl/LiE/?
It is only in dvi form. If you need a pdf, just ask.
On Mon, Nov 10, 2008 at 11:29 PM, RamBo <[EMAIL PROTECTED]> wrote:
The file-opening method seems to work out much better; I don't
necessarily know what was wrong, but this solved it to a reasonable
enough point for now; I'll keep you posted as we run a test on the
Swahili wikipedia, which should result in about 5000 ish nodes in the
largest connected component.
William Stein wrote:
> sage: time a =
> eval(open(get_remote_file('http://www.devingaffney.com/files/data.txt')).read())
> Attempting to load remote file: http://www.devingaffney.com/files/data.txt
> Loading: []
> CPU times: user 0.05 s, sys: 0.03 s, total: 0.09 s
> Wall time: 0.42 s
Tha
DGaffney wrote:
>
> Basically, the error is as such:
>
> Our error is that when we use data of list length > 600ish, for some
> reason sage hangs. We know that this is not because we are impatient,
> and that it is actually working, because when the list length is under
> 600ish, it generates al
that is the output I was expecting, but it is not the input I gave.
Obviously,
1/x - 1/(x+1) = 1/(x*(x+1))
but, if the right hand side can be done why the left hand side can't?
This is the bug I was talking about...
On 10 nov, 19:51, "Mike Hansen" <[EMAIL PROTECTED]> wrote:
> On Mon, Nov 10, 200
On Mon, Nov 10, 2008 at 5:36 PM, cesarnda <[EMAIL PROTECTED]> wrote:
>
> Actually this sum can't be done by Maxima, but Derive can do it (even
> an old version of derive). do you have an idea of how this problem is
> planning to be solved?
Is this the answer you were expecting?
(%i6) load(simpli
Actually this sum can't be done by Maxima, but Derive can do it (even
an old version of derive). do you have an idea of how this problem is
planning to be solved?
On 10 nov, 19:30, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Mon, Nov 10, 2008 at 5:29 PM, cesarnda <[EMAIL PROTECTED]> wrote:
>
On Mon, Nov 10, 2008 at 5:29 PM, cesarnda <[EMAIL PROTECTED]> wrote:
>
> how could I compute this:
>
> sum_{ x = 1}^{\infty} 1/x - 1/(x+1)
>
> or
>
> sum(1/x-1/(x+1),x,1, infinity)
>
> directly in Sage, without calling maxima or sympy?
Unfortunately, this isn't implemented yet. See:
http://trac.
how could I compute this:
sum_{ x = 1}^{\infty} 1/x - 1/(x+1)
or
sum(1/x-1/(x+1),x,1, infinity)
directly in Sage, without calling maxima or sympy?
--~--~-~--~~~---~--~~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this g
On Mon, Nov 10, 2008 at 4:14 PM, DGaffney <[EMAIL PROTECTED]> wrote:
>
>
> Basically, the error is as such:
>
> Our error is that when we use data of list length > 600ish, for some
> reason sage hangs. We know that this is not because we are impatient,
> and that it is actually working, because wh
Basically, the error is as such:
Our error is that when we use data of list length > 600ish, for some
reason sage hangs. We know that this is not because we are impatient,
and that it is actually working, because when the list length is under
600ish, it generates almost instantly. We want to be
On Mon, Nov 10, 2008 at 7:53 AM, pong <[EMAIL PROTECTED]> wrote:
>
>
> I have published a worksheet title Demo when server 2 was available.
> However, I can no longer find it on the published worksheet list from
> SAGE online. Any help?
Try looking here:
http://sage.math.washington.edu/home/was
Thank you,
if I assign a value I lose symbolic expression ?
If I set GAMA=1 than gama in equation is not a letter/symbol of gama
but it is a number that was asigned to gama?
I though that I can keep the expression in symbolic notation and still
plot/calculate the equation.
So this means that the
On Nov 10, 2008, at 12:57 PM, acardh wrote:
>
> One more question about this. How can I draw a line between any two
> given points?
>
> I am doing this
> world = sphere((0,0,0), size=1, color='blue')
> cities = [(38.7598, -121.294),(40.3503, -74.6594),(27.959, -82.4821)]
> t = RDF(pi/180)
> city_
Thanks a lot.
-Adrian
On Nov 7, 3:19 am, Pablo Angulo <[EMAIL PROTECTED]> wrote:
> > Hm I can give it a try. As a work around, is it possible to have
> > the behaviour of jmol so that instead of being embeded in the webpage
> > as an applet it launches it as it normally would?
>
> In Intre
Dear Boris,
On Nov 10, 9:56 pm, kex <[EMAIL PROTECTED]> wrote:
> GAMA==1
> BETA==1
> THETA==10
> N==1000
> MI==1
> JR==0
> PI==3
> PSI==x
Are these supposed to be assignments?
If "yes", it should be
GAMA=1
BETA=1
THETA=10
etc.
When you do
GAMA==1
where GAMA is a variable, you just create a for
On Nov 10, 1:06 pm, cesarnda <[EMAIL PROTECTED]> wrote:
Hi,
> I get the following error while I was trying one of the examples about
> animate
>
> sage: a.show()
> dyld: Symbol not found: __cg_png_create_info_struct
> Referenced from: /System/Library/Frameworks/
> ApplicationServices.framewo
Thanks, Martin.
On Nov 10, 8:07 pm, Martin Rubey <[EMAIL PROTECTED]> wrote:
> Alex Raichev <[EMAIL PROTECTED]> writes:
> > Hi all:
>
> > Is there Sage function that computes Taylor expansions for
> > multivariate functions?
>
> If you are willing to install the optional fricas package:
>
> sage:
I get the following error while I was trying one of the examples about
animate
sage: a.show()
dyld: Symbol not found: __cg_png_create_info_struct
Referenced from: /System/Library/Frameworks/
ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/
Versions/A/ImageIO
Expected in
One more question about this. How can I draw a line between any two
given points?
I am doing this
world = sphere((0,0,0), size=1, color='blue')
cities = [(38.7598, -121.294),(40.3503, -74.6594),(27.959, -82.4821)]
t = RDF(pi/180)
city_coords = [(cos(t*theta)*cos(t*phi), sin(t*theta)*cos(t*phi),
s
var('G')
GAMA=var('gamma')
BETA=var('beta')
PSI=var('psi_c')
THETA=var('theta')
N=var('N')
MI=var('mu')
J1(x)=var('J_e1')
JR=var('J_R')
PI=var('pi')
GAMA==1
BETA==1
THETA==10
N==1000
MI==1
JR==0
PI==3
PSI==x
G = GAMA * (exp(PSI) + BETA*sqrt(THETA)*exp(PSI/THETA)) /
sqrt(2*PI*(N^2 * MI - 2*PSI))
On Nov 10, 2008, at 11:23 AM, Nasser Abbasi wrote:
> Hello;
>
> I was just browsing something to learn about sage, and noticed this on
> this web site
> http://wiki.sagemath.org/sage_mathematica
>
> where it says:
>
> "sage: [f(i) for i in range(1, 11)]
> [g(1), g(2), g(3), g(4), g(5), g(6), g(7)
On Monday 10 November 2008, Nasser Abbasi wrote:
> Hello;
>
> I was just browsing something to learn about sage, and noticed this on
> this web site
> http://wiki.sagemath.org/sage_mathematica
>
> where it says:
>
> "sage: [f(i) for i in range(1, 11)]
> [g(1), g(2), g(3), g(4), g(5), g(6), g(7), g
Hi Nasser,
Nasser Abbasi wrote:
> Hello;
>
> I was just browsing something to learn about sage, and noticed this on
> this web site
> http://wiki.sagemath.org/sage_mathematica
>
> where it says:
>
> "sage: [f(i) for i in range(1, 11)]
> [g(1), g(2), g(3), g(4), g(5), g(6), g(7), g(8), g(9), g(
On Nov 9, 2008, at 3:32 PM, William Stein wrote:
> On Sun, Nov 9, 2008 at 3:07 PM, William Stein <[EMAIL PROTECTED]>
> wrote:
>> On Sun, Nov 9, 2008 at 2:04 PM, Justin C. Walker <[EMAIL PROTECTED]>
>> wrote:
>>>
>>> Hi,
>>>
>>> On Nov 9, 2008, at 13:27 , [EMAIL PROTECTED] wrote:
>>>
Hell
Hello;
I was just browsing something to learn about sage, and noticed this on
this web site
http://wiki.sagemath.org/sage_mathematica
where it says:
"sage: [f(i) for i in range(1, 11)]
[g(1), g(2), g(3), g(4), g(5), g(6), g(7), g(8), g(9), g(10)]
(note that the endpoint of the range is not inc
On Nov 9, 2008, at 1:21 PM, alia hamieh wrote:
> I'm using sage 3.1.4 on windows vista.
> I know that I should create a file with content the function
> that i want to implement and then use the load command from the
> command line to run it. how do we create this file and where do we
>
I have published a worksheet title Demo when server 2 was available.
However, I can no longer find it on the published worksheet list from
SAGE online. Any help?
Thanks in advance
--~--~-~--~~~---~--~~
To post to this group, send email to sage-support@googlegroup
On Monday 10 November 2008, Thomas Kahle wrote:
> Hi,
>
> here is another try.
>
> sage: R = QQ['a,b,c,w,x,y,z']
> sage: (a,b,c,w,x,y,z) = R.gens()
> sage: I = (x^5-a*b*c^3, x^7-w^5*a^5*b^5, b*c^3-a^7, \
> b^2*a^3*c^5*x-y*z*w^2, x*y*z-w*z^2*a*b, b*x-a*w*z^9)*R
> sage: time _ = I.radical()
> CPU ti
> Well, given that it works the way I want it on your machine I will
> consider that a minor problem then :)
To make sure I just checked on sage.math (64-bit, Debian/GNU Linux, 1.8Ghz):
Singular:
real0m36.738s
user0m34.946s
sys 0m1.784s
Sage:
real0m39.919s
user0m1.796s
sys
On Mon, 2008-11-10 at 16:27 +, Martin Albrecht wrote:
> On Monday 10 November 2008, Thomas Kahle wrote:
> > Hi,
> >
> > here is another try.
> >
> > sage: R = QQ['a,b,c,w,x,y,z']
> > sage: (a,b,c,w,x,y,z) = R.gens()
> > sage: I = (x^5-a*b*c^3, x^7-w^5*a^5*b^5, b*c^3-a^7, \
> > b^2*a^3*c^5*x-y*z
Hi,
here is another try.
sage: R = QQ['a,b,c,w,x,y,z']
sage: (a,b,c,w,x,y,z) = R.gens()
sage: I = (x^5-a*b*c^3, x^7-w^5*a^5*b^5, b*c^3-a^7, \
b^2*a^3*c^5*x-y*z*w^2, x*y*z-w*z^2*a*b, b*x-a*w*z^9)*R
sage: time _ = I.radical()
CPU times: user 0.21 s, sys: 0.05 s, total: 0.26 s
Wall time: 41.03 s
On Monday 10 November 2008, Thomas Kahle wrote:
> Hi again, thanks for your help
>
> > You are definitely not using libSingular but the Singular pexpect
> > interface. libSingular is the C++ interface to a subset of Singular (the
> > kernel).
>
> Then, how do I use libSingular ?
> Is it used if wo
Hi again, thanks for your help
> You are definitely not using libSingular but the Singular pexpect interface.
> libSingular is the C++ interface to a subset of Singular (the kernel).
Then, how do I use libSingular ?
Is it used if work directly with the types implemented in sage, like
R = QQ['x,
In connection with another post by Andreas, I realised that the above
ashow() definition does not create nice output if decimal numbers are
involved:
y = 0.5*x
ashow('y')
returns:
y=0.500x
Is there a way of manipulating the eval() command to round a decimal
number? If so, I would be h
It seems that latex(eqn) just evaluates eqn and prints the result in
latex notation, without cutting off annoying 0s or giving the user the
opportunity to set a precision. I find this very annoying, as such
latex output is not very useful for illustration purposes. Does anyone
know a trick how to
On Monday 10 November 2008, Thomas Kahle wrote:
> Dear all,
> I'm curious about performance of Singular computations which are run
> from sage:
>
> I tried the following test:
>
> ---
> cat singulartest.sage
> R = singular.ring(0,'(a,b,c,w,x,y,z)','lp');
> I = singular.ideal('x5-abc3', 'x7-w5a5b5'
Hello,
I am trying to plot an edgevworth box in sage. To do so, I need to
plot contours of two different functions; one of them with the usual
origin and axes, the other turned upside-down - i.e. with origin north-
east.
To get a feeling of how this works, you can have a look at
http://en.wikiped
Dear all,
I'm curious about performance of Singular computations which are run
from sage:
I tried the following test:
---
cat singulartest.sage
R = singular.ring(0,'(a,b,c,w,x,y,z)','lp');
I = singular.ideal('x5-abc3', 'x7-w5a5b5', 'bc3-a7', 'b2a3c5x-yzw2',\
'xyz-wz2ab', 'bx-awz9')
S = I.std
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