john_perry_usm wrote:
> I'm pretty sure this is a bug, but just in case:
>
> sage: diff(sec(x))
> D[0](sec)(x)
> sage: plot(diff(sec(x)), 0, pi/4)
> ...traceback omitted...
> AttributeError: 'sage.symbolic.expression.Expression' object has no
> attribute '_set_extra_kwds'
> sage: f = diff(sec(x))
I'm pretty sure this is a bug, but just in case:
sage: diff(sec(x))
D[0](sec)(x)
sage: plot(diff(sec(x)), 0, pi/4)
...traceback omitted...
AttributeError: 'sage.symbolic.expression.Expression' object has no
attribute '_set_extra_kwds'
sage: f = diff(sec(x))
sage: f(x=0)
D[0](sec)(0)
The same thi
Changed to AsciiMath. Working great. I have pretty print all over
the server. Most of the functions have pretty print. Works great
with FireFox even from a Linux box. If you use IE8 or 7 you will need
to install MathPlayer. Try the text2speech function. Really nice.
Right click on the math
You might also find some of the differential equation interact
examples helpful, there are three that relate to Euler's method:
http://wiki.sagemath.org/interact/diffeq
-M. Hampton
On Sep 24, 12:52 pm, Jaasiel Ornelas wrote:
> wow, Iwas trying to figure out how to do exactly what you did, but
Hi Francois,
On Sat, Sep 26, 2009 at 2:35 AM, Francois Maltey wrote:
> 1/ I see you have already patched the exp(a)^b problem. I use sage-4.1.1
> and run sage -upgrade, but I don't get any update. Of corse I can wait
> the next sage, but is there a way to get a new-and-unstable sage ?
See t
On Sep 25, 12:35 pm, Francois Maltey wrote:
> Hi Burcin,
>
> Many thanks for theses details about sage. I try to understand what you
> prefer, and why.
>
> > The main reason I left this simplification "exp(a)^2 to exp(2*a)" while
> > fixing #6948 was that MMA does things this way.
>
> All righ
Sterling wrote:
> Now how do I evaluate f itself at those same points. I can't seem to
> figure it out.
>
f is a vector-valued function. Right now, I think the best way to
evaluate a vector-valued function is to declare it a vector:
f = vector([f1(x1,x2,x3), f2(x1,x2,x3), f3(x1,x2,x3)])
We a
Hi Burcin,
Many thanks for theses details about sage. I try to understand what you
prefer, and why.
> The main reason I left this simplification "exp(a)^2 to exp(2*a)" while
> fixing #6948 was that MMA does things this way.
All right : MMA is good.
> Another consideration was that before pe
Susi wrote:
> Thanks for the answer, well, I violated a basic rule: Don't use new
> systems too early. I will wait for the upgrade and hopefully it won't
> take too long. I'm specifically intersted in using Sagetex but it
> won't work without Sage.
>
If I recall correctly, sagetex now can work w
On Fri, Sep 25, 2009 at 6:49 AM, kcrisman wrote:
>
> This problem was just reported again on sage-support. To those who
> reported it (Gary, Jeannine), did you use the 64-bit binary? That was
> the one which caused the problem on the most recent report. Does the
> 32-bit binary work properly f
Now how do I evaluate f itself at those same points. I can't seem to
figure it out.
On Sep 24, 9:47 pm, Jason Grout wrote:
> Sterling wrote:
> > How do I evaluate a Jacobian at certain values? For example, I type:
>
> > x1,x2,x3 = var('x1 x2 x3')
>
> > f1(x1,x2,x3) = 3*x1 - cos(x2*x3) - (1/2)
>
This is a really nasty bug.. Symbolic maxima and minima are
mathematical standard tools, they should at least be _callable_ in
standard sage. One can see the problem this way:
p = var("p")
show( plot(max(p,3),(p,0,10)) )
show( plot(min(p,3),(p,0,10)) )
Could someone please post a quickhack to de
This problem was just reported again on sage-support. To those who
reported it (Gary, Jeannine), did you use the 64-bit binary? That was
the one which caused the problem on the most recent report. Does the
32-bit binary work properly for you? (The error messages above all
say it's looking for
Thanks for the answer, well, I violated a basic rule: Don't use new
systems too early. I will wait for the upgrade and hopefully it won't
take too long. I'm specifically intersted in using Sagetex but it
won't work without Sage.
Swanhild
--~--~-~--~~~---~--~~
To po
Hi Swanhild,
On Fri, Sep 25, 2009 at 9:48 PM, Susi
wrote:
>
> Thanks for your answer, yes, I do use a mac
> OS X 10.6 (snow leopard)
> and the Sage version is
> sage-4.1.1-OSX10.5-intel-64bit
Snow Leopard is pretty new. The binary you used was built on O
On 24 zář, 11:08, William Stein wrote:
> For the record, here is the actual entry I use in /etc/httpd.conf:
>
>
> RewriteEngine On
> ServerName sagenb.org
> ProxyPass/http://sagenb2:8000/
> ProxyPassReverse /http://sagenb2:8000/
> DocumentRoot /
>
>DefaultTyp
Thanks for your answer, yes, I do use a mac
OS X 10.6 (snow leopard)
and the Sage version is
sage-4.1.1-OSX10.5-intel-64bit
Sage has no problem with (simple) calculation, I already tried that
and it works fine.
Swanhild
--~--~-~--~~---
I guess you are using a mac, but can you tell us what version the OS is and
what version of Sage you are running? Is it a binary, for example?
(This might help others on the list diagnose the problem.)
On Fri, Sep 25, 2009 at 7:18 AM, Swanhild Bernstein
wrote:
>
> Hallo,
>
> I'm new to sage and
Hallo,
I'm new to sage and tried to use it. After the installation I started
a worksheet and tried the following
circle((0,0), 1, rgbcolor=(1,1,0))
and got the replay
/Applications/sage/local/bin/sage-sage: line 349: 4119 Abort
trap
python "$@"
What is wrong?
--~--~-~--~~---
Hi William,
>
> Try putting " import sage.matrix.matrix" as the line *right* before
> you use "sage.matrix.matrix.is_Matrix()". I.e., do the import in the
> function, not at the module level.
>
That is what I first tried. That results in the same error. I added
the line
import sage.matrix.matr
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