Thanks. Unfortunately, for my particular example, it didn't work as is
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| Sage Version 4.2, Release Date: 2009-10-24 |
| Type notebook() for the GUI, and license() for information.|
This simple minded approach seems to work for me:
sage: a(x)=2*x
sage: b(x)=a(x)^2
sage: g(x)=diff(b(x),x)
sage: g(2)
16
-Alasdair
On Jan 21, 2:14 am, Stochastix laurent.decreusef...@gmail.com wrote:
I have the following problem : I have two nested functions
a=lambda x: 2*x
b=lambda x:
Hi,
I think what Minh was trying to say is that these lines:
Stochastix wrote:
sage: a=lambda x: alpha*x-mu1+mu2
sage: f=lambda x: (a(x)*b-c+sqrt((a(x)*b-c)^2+4.0*a(x)*b*r*mu1))/(2*a
(x)*mu1)
sage: g=lambda x: (r+l-mu1*f(x))/mu2
sage: prev=lambda x: f(x)/(f(x)+g(x))
sage: k=lambda x:
Dear Sage users,
I'm using Sage in a class this semester, and all my students are
running Vista. I've instructed them to get sagenb.org accounts and to
use Firefox. All going well so far, until they try to shift-click
above a cell to get a TinyMCE editor. Many of them report the
following
I do not recall having trouble with parametric_plot3d() before today.
I'm still not having trouble except when I try using it to plot a
surface.
I am running Sage through a browser (Firefox) at the website www.sagenb.org
, so I presume it is the latest in programming. A simple command
Is there a way to specify default parameters for graphics? One specific
example, is that I would like to specify that the default color for
function plots, lines, points, etc be 'black' instead of 'blue'.
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On Thu, Jan 21, 2010 at 7:06 AM, Mike Witt msg...@gmail.com wrote:
Is there a way to specify default parameters for graphics? One specific
example, is that I would like to specify that the default color for
function plots, lines, points, etc be 'black' instead of 'blue'.
sage: plot.options
On Thu, Jan 21, 2010 at 6:39 AM, Thomas Scofield scofi...@calvin.edu wrote:
I do not recall having trouble with parametric_plot3d() before today. I'm
still not having trouble except when I try using it to plot a surface.
I am running Sage through a browser (Firefox) at the website
On 01/21/2010 07:35:13 AM, William Stein wrote:
On Thu, Jan 21, 2010 at 7:06 AM, Mike Witt msg...@gmail.com wrote:
Is there a way to specify default parameters for graphics? One
specific
example, is that I would like to specify that the default color for
function plots, lines, points, etc
On Thu, Jan 21, 2010 at 7:50 AM, Mike Witt msg...@gmail.com wrote:
On 01/21/2010 07:35:13 AM, William Stein wrote:
On Thu, Jan 21, 2010 at 7:06 AM, Mike Witt msg...@gmail.com wrote:
Is there a way to specify default parameters for graphics? One specific
example, is that I would like to
On 01/21/2010 08:16:22 AM, William Stein wrote:
On Thu, Jan 21, 2010 at 7:50 AM, Mike Witt msg...@gmail.com wrote:
On 01/21/2010 07:35:13 AM, William Stein wrote:
On Thu, Jan 21, 2010 at 7:06 AM, Mike Witt msg...@gmail.com
wrote:
Is there a way to specify default parameters for graphics?
I have cc'd this email to http://groups.google.com/group/sage-notebook
On Thu, Jan 21, 2010 at 6:00 AM, Nathan Carter nathancart...@gmail.com wrote:
Dear Sage users,
I'm using Sage in a class this semester, and all my students are
running Vista. I've instructed them to get sagenb.org
On Thu, Jan 21, 2010 at 8:24 AM, Mike Witt msg...@gmail.com wrote:
On 01/21/2010 08:16:22 AM, William Stein wrote:
On Thu, Jan 21, 2010 at 7:50 AM, Mike Witt msg...@gmail.com wrote:
On 01/21/2010 07:35:13 AM, William Stein wrote:
On Thu, Jan 21, 2010 at 7:06 AM, Mike Witt msg...@gmail.com
Advice needed on restarting a notebook server (now that I have
successfully built 4.3.1).
I guess that the admin for sagenb.org must do this all the time, so
all this must surely be easy, but I want to double check. There are
several users with accounts -- how can I tell which are logged in? I
Cool.
I have to build the OS X 10.4 versions of Sage 4.3.1 right now, but
will have a look at that one. Thanks!
Cheers,
Georg
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On Jan 21, 8:49 pm, William Stein wst...@gmail.com wrote:
On Thu, Jan 21, 2010 at 12:14 PM, John Cremona john.crem...@gmail.com wrote:
Advice needed on restarting a notebook server (now that I have
successfully built 4.3.1).
I guess that the admin for sagenb.org must do this all the
Is there a way to change the generators used in the internal
representation of the unit group of a number field? I am currently
doing this by hand in an ad-hoc manner and it is very tedious, not to
mention prone to mistakes. To be concrete, consider the following:
sage:
I'm trying to find out if the NIST recommended elliptic curves
(appendix to http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf)
are in the Cremona database. I can't seem to find anything online;
does anybody here know?
Thanks,
Alasdair
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Hi Alasdair,
My initial reaction is to point out that the NIST elliptic curves are
over finite fields, while the Cremona database contains elliptic curves
over the rational numbers.
I don't see why we couldn't have a database with the NIST recommended
elliptic curves available in Sage, though.
On Thu, Jan 21, 2010 at 4:28 PM, Alex Ghitza aghi...@gmail.com wrote:
Hi Alasdair,
My initial reaction is to point out that the NIST elliptic curves are
over finite fields, while the Cremona database contains elliptic curves
over the rational numbers.
I don't see why we couldn't have a
On Thu, 21 Jan 2010 16:36:47 -0800, William Stein wst...@gmail.com wrote:
Aren't those curves owned by some company though, and one can't use
them without paying license fees? I can't believe I just wrote that
sentence.
There's some info at
http://en.wikipedia.org/wiki/ECC_patents
It
Stochastix wrote:
I have the following problem : I have two nested functions
a=lambda x: 2*x
b=lambda x: a(x)^2
Everything goes well as long as I want to compute the derivative of b
but how can I evaluate this derivative at x=2.
I tried
g=lambda x: diff(b(x),x)
g(x) returns 8*x as expected
On Thu, Jan 21, 2010 at 7:03 PM, Thomas Scofield scofi...@calvin.eduwrote:
I am creating notebooks to publish for my students to use in a spring
course. Perhaps not surprisingly, I am interspersing commands, output of
those commands, and explanatory text. The only way I know to create the
I wish to improve animate so that it supports 3d plots
(I want to make an animation of a moving 3d curve).
I've been told that animate does this by joining several
png files.
However, I've found no practical way to save pictures
of 3d plots. I want let's say i have:
sage: v=(sin(z+t),0,t)
sage:
On Thu, Jan 21, 2010 at 10:47 PM, Oscar Gerardo Lazo Arjona
algebraicame...@gmail.com wrote:
I wish to improve animate so that it supports 3d plots
(I want to make an animation of a moving 3d curve).
I've been told that animate does this by joining several
png files.
This bug was fixed at the
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