On Thursday, November 21, 2013 1:23:14 PM UTC-8, lutusp wrote:
>
> On a Dell desktop machine running 64-bit OpenSuSE 13.1, compiling Sage
> 5.12, the process terminated with the information that Atlas failed to
> build. Details from the Atlas log (
> https://www.dropbox.com/s/
On a Dell desktop machine running 64-bit OpenSuSE 13.1, compiling Sage
5.12, the process terminated with the information that Atlas failed to
build. Details from the Atlas log
(https://www.dropbox.com/s/g0qrgd3pt0il1v5/atlas-3.10.1.p5.log):
--
> See #9835 and #9961 on the issue tracker. The patch by Robert
> Marik attached to #9835 solves the problem you show below.
I applied the #9835 patch, no effect, same outcome for the earlier
posted example.
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Dear group:
In examining past thread on this issue, I am unable to tell if this
bug is seen as resolved, but ... it isn't.
Sage 4.5.3 compiled locally on a Linux platform.
sage: reset()
sage: var('g t')
sage: x = function('x',t)
sage: forget()
sage: assume(g > 0)
sage: de = x - g * diff(x,t,2)
s
> Then why do you bother posting things that look like requests for
> help?
In the hope that someone will fix the source, rather than offer new
patches? It's not as though it hasn't been reported yet, or discussed
yet, and several new releases have gone by without resolution.
Meanwhile I'll get ar
> Give some examples, please.
var("y R")
a(y,R) = pi * (2*R - y) * y
lbl = text("$\int \ " + latex(a(y,R)) + "$",(3,20))
view(lbl)
... Graphics object consisting of 1 graphics primitive (not
displayed)
show(lbl)
... Unknown control sequence '\texttt'
No graphics shown.
> By the way, have
> Maybe use "view" instead of "show"?
A good solution until text and graphics are mixed, then it fails (by
requiring what 'show' has to offer). As I said elsewhere, this problem
is worse in 4.3.1 than it was in 4.2.
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On Oct 20, 1:22 pm, William Stein wrote:
// ...
> Weird. There are changes in the new notebook that could impact
> performance in surprising ways. E.g., after a computation is
> completed that creates output files, those files are moved back into
> the server's directory. This is much more f
On Oct 20, 12:35 pm, William Stein wrote:
> On Tue, Oct 20, 2009 at 12:32 PM, lutusp wrote:
> > I will recreate this procedure and let you know. The VM really did
> > die,
>
> What does that mean? What does it mean to say "The VM really did die?"
Sorry
On Oct 20, 11:02 am, William Stein wrote:
// ...
> Can you enter your example athttp://demo.sagenb.orgor paste it to
> pastebin, or paste a link to it online. By just pasting it in an
> email it gets word wrapped, which yields it suspect.
Ye,s I noticed this as soon as I posted. See below for
On Oct 20, 11:22 am, mhampton wrote:
> OK, I can reproduce that - I got an error after the first cell.
>
> After saving & quitting, and deleting the line:
> reset()
>
> then re-launching that worksheet everything seems to work fine. So I
> think this is something about the reset() function. I'v
Hello all:
Today I decided to try out the new VirtualBox/PuppyLinux virtual
machine for Windows users. It seems much nicer than the prior version
and I want to update my tutorial to make reference to it.
Also I wanted to see if I experienced the same issue I've been
experiencing with 4.1.2 runni
On Oct 19, 10:00 pm, William Stein wrote:
> Despite your extensive feedback, I have no ideas. Could you tar up
> and post your sage_notebook.sagenb directory and just let me try it
> out, assuming it doesn't have anything too personal, and just let me
> try it out?
I thank you in advance for
On Oct 19, 10:19 am, William Stein wrote:
> On Mon, Oct 19, 2009 at 9:30 AM, lutusp wrote:
>
> > Hi all. Just downloaded 4.1.2 for Fedora 11. When I start the notebook
> > server, everything is fine -- the worksheets get converted and placed
> > in the new directory sage
Hi all. Just downloaded 4.1.2 for Fedora 11. When I start the notebook
server, everything is fine -- the worksheets get converted and placed
in the new directory sage_notebook.sagenb, then I can load a
worksheet. But when I try to execute a cell, I get this error message:
NameError: name 'sagenb'
On Oct 13, 2:09 pm, Robert Bradshaw
wrote:
> I agree that this notation is nice. One issue with this approach is
> that the single quote is already used in Python. For example,
>
> sage: u'(x) + y'
> u'(x) + y'
>
> sage: type(_)
>
>
> sage: r'''(t)'''
> '(t)'
>
> How would one distingui
I'm aware there has been some discussion of this issue in the past,
but I would like to renew it. I understand that canonical DE notation
isn't on everyone's short list of high priorities, but I think
students and those with little Sage exposure would appreciate the
ability to enter a textbook equ
On Oct 10, 11:59 am, Jason Grout wrote:
{ snip ]
> As a workaround, maybe you can use the vector fft that uses numpy/scipy?
Actually, I didn't have a compelling reason to use radix 2, so I now
simply avoid powers of 2. It's for my tutorial pages -- the one I'm
writing now is about general Fo
On Oct 10, 12:07 pm, Jason Merrill wrote:
[ snip ]
> Anyway, I don't mean to belabor the introductory essay, just to say
> that I think it ought to be published separately from the tutorial.
Fair enough, but the majority of my site's visitors arrive from a
search engine, and most of those peop
This bug is very easy to create -- just specify an FFT instance using
a power of 2 and try to perform an inverse FFT:
age: a = FFT
(1024)
sage: a.inverse_transform()
Unhandled SIGSEGV: A segmentation fault occured in SAGE.
This probably
On Oct 3, 6:09 pm, William Stein wrote:
> Would you be willing to license the tutorial under a CreativeCommons
> license, so it could be included in Sage in exactly the same style as
> the other Sage docs and so we could create a mirror of the tutorial on
> the sagemath.org website?
Done. The
On Oct 3, 4:33 am, Minh Nguyen wrote:
> My only comment for now is that your tutorial looks very beautiful and
> professional.
Thank you! I remain open to any corrections or improvements you care
to suggest (I'm not a professional mathematician by any stretch).
--~--~-~--~~
On Oct 3, 6:09 pm, William Stein wrote:
> Would you be willing to license the tutorial under a CreativeCommons
> license, so it could be included in Sage in exactly the same style as
> the other Sage docs and so we could create a mirror of the tutorial on
> the sagemath.org website?
Sure, I hav
On Oct 3, 4:36 am, Harald Schilly wrote:
> On Oct 3, 12:49 pm,lutusp wrote:
>
> > I am more than open to comments and criticism
>
> Hi, great work! I'll link to the page from the sage help page, as an
> "external resource".
> The only point i'm not h
Hello all. I have completed my Sage tutorial, located at:
http://arachnoid.com/sage
The tutorial has eight articles on various topics and includes
downloadable example worksheets for each. I cover installation,
basics, several Calculus topics, differential equations, an example
that creates a se
I find I cannot make more than one of a certain kind of assume
statement:
sage: assume(a,'real')
sage: assume(b,'real')
If I do, I get an error message:
AttributeError: 'GenericDeclaration' object has no attribute
'variables'
One such assumption is accepted, but not two. But more typical
assum
On Sep 26, 6:05 pm, Robert Bradshaw
wrote:
> On Sep 26, 2009, at 3:45 PM, lutusp wrote:
>
>
>
> > I 'm in the process of writing a Sage tutorial at http://
> > arachnoid.com/sage.
> > I'm about about halfway through the project, the completed pages may
&
On Sep 26, 12:12 pm, William Stein wrote:
> Hi,
>
> Are there any amazingly good freely available introductions to basic
> command line UNIX that people recommend. I've noticed that many
> people (often young students raised on Windows) who really want to
> work on Sage don't know anything about
I 'm in the process of writing a Sage tutorial at http://arachnoid.com/sage.
I'm about about halfway through the project, the completed pages may
be a useful resource, and I wanted to (1) announce this, and (2) ask
for comments from people willing to read the articles.
Thanks!
--~--~-~--
I hope this isn't old news. I just figured out how to use "lambda" as
a variable without conflicting with the Python keyword. It's very
simple -- all you need to do is put an underscore at the end of the
name:
lambda_ = var("lambda")
This is the syntax for adding a subscript, but ... no subscrip
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