The exact integral
1/2*(erf(pi - 1/2*I) + erf(pi + 1/2*I))*sqrt(pi)*e^(-1/4)
contains *real* expression
(erf(pi - 1/2*I) + erf(pi + 1/2*I))
but maxima/sage can't check that it is real
In WolframAlpha one can check that
Im[Erf[Pi-1/2*I]+Erf[Pi+1/2*I]]
iz zero
Andrzej Chrzeszczyk
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To
Yes, but if you post integrate(0,x) directly into a cell, it evaluates to a
constant.
Any idea why it doesn't do so in this case?
Joal Heagney
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See http://trac.sagemath.org/sage_trac/ticket/9634. I think everyone
sort of ran out of gas on it - help is welcome!
- kcrisman
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For
Just finished an install from source of Sage 4.7.1 on a CentOS 5.7
remote server..
Got a Failed to install maxima.fasb as a library error even though
everything else works fine.. command line and notebook..
Should I be concerned about this error or it is possible to install
packages
On Oct 8, 9:38 am, Patrick ABOU BAKAR amp...@gmail.com wrote:
Just finished an install from source of Sage 4.7.1 on a CentOS 5.7
remote server..
Got a Failed to install maxima.fasb as a library error even though
everything else works fine.. command line and notebook..
In 4.7.1, a failure to
Hi,
I created a simple graph by commanding:
a=Graph({0:[1,2],2:[3,4],1:[5,6]})
and plot it in tree layout:
a.plot(layout='tree',tree_root=0,tree_orientation='down')
However, the tree ploted will arrange the vertices unexpectedly
because the edges for instance (1,5) and (2,4) are intersected.
This is a bug. Thank you for reporting it.
On Sat, Oct 8, 2011 at 11:19 AM, Zheng zh.han...@gmail.com wrote:
Hi,
I created a simple graph by commanding:
a=Graph({0:[1,2],2:[3,4],1:[5,6]})
and plot it in tree layout:
a.plot(layout='tree',tree_root=0,tree_orientation='down')
However, the
True.. When I took my installation of Sage for a test-drive, errors
started popping out..
About SELinux, it is disabled on this server..
root@host1 [~]# sestatus
SELinux status: disabled
What do I do from here?
Enable SELinux and do another make?
I installed Sage as user
Hi everyone
I have two polynomial p,q, when I make
sage:print polynomial, type(polynomial)
get
a*X type 'sage.rings.polynomial.polynomial_zz_pex.Polynomial_ZZ_pEX'
X^4 + (a + 1)*X^3 + (a^3 + a)*X^2 + a*X + 1 class
'sage.rings.fraction_field_element.FractionFieldElement_1poly_field'
I want
On 10/8/11 2:19 PM, Tom Boothby wrote:
This is a bug. Thank you for reporting it.
Just FYI to others, it appears that Tom opened a ticket to track this here:
http://trac.sagemath.org/sage_trac/ticket/11908
Thanks,
Jason
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Couple of questions.
I've been trying to insert Greek letters into my graph (mu). I tried alt codes
and didn't find anything in the wiki's. Is there an easy way to do this?
Second, is there a way to control the tick marks on the axis separately or even
remove them altogether? I'm doing some
I've been trying to insert Greek letters into my graph (mu). I tried alt
codes and didn't find anything in the wiki's. Is there an easy way to do this?
Where would you like to do this? Here is an example.
P = plot(sin(x),(x,0,pi),axes_labels=['$\\mu$','$y$'])
show(P)
P += text($\\mu$,(pi,1))
On Sat, 08 Oct 2011 at 01:05AM -0700, achrzesz wrote:
The exact integral
1/2*(erf(pi - 1/2*I) + erf(pi + 1/2*I))*sqrt(pi)*e^(-1/4)
contains *real* expression
(erf(pi - 1/2*I) + erf(pi + 1/2*I))
but maxima/sage can't check that it is real
In WolframAlpha one can check that
So I have installed a purchased certificate (on Godaddy) and installed
it for subdomain.example.com
But when I run notebook(interface=subdomain.example.com, port=8051,
secure=True), I only see the self-signed certificate automatically
generated by SAGE.
Any idea?
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Sage was working and then all of a sudden when I try to start it I get
this message. Does anyone know how to fix this?
/opt/sage-4.7.1-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux/devel/
sagenb/sagenb/notebook/notebook_object.pyc in __call__(self, *args,
**kwds)
215
216 def
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