On Feb 1, 12:01 pm, Burcin Erocal wrote:
> On Mon, 31 Jan 2011 14:19:51 -0800 (PST)
>
> Michael Beeson wrote:
> > It seems that var('z') makes sage think z is real.
>
> > simplify(real(z)) returns z and simplify(imag(z)) returns 0.
>
> This is #6862 on trac:
>
> http://trac.sagemath.org/sag
On Mon, 31 Jan 2011 14:19:51 -0800 (PST)
Michael Beeson wrote:
> It seems that var('z') makes sage think z is real.
>
> simplify(real(z)) returns z and simplify(imag(z)) returns 0.
This is #6862 on trac:
http://trac.sagemath.org/sage_trac/ticket/6862
It's one of the major bugs remaining
$HOME/.local/bin is not a "standard place" to look for executables. It will
only be searched if you put it into the PATH yourself.
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For m
It seems that var('z') makes sage think z is real.
simplify(real(z)) returns z and simplify(imag(z)) returns 0.
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For more options,
Here are the contents of a sage file.
var('z')
C = ComplexField()
i = C(0,1)
X = real(integral(z,z))
print X
X = simplify(X)
print X
Here is the corresponding output
1/2*real_part(z)^2 - 1/2*imag_part(z)^2
1/2*z^2
The first line is already surprising as I expected 1/2 *
real_part(z^2). But i
There seem to be nothing special in ~/.ipython:
jscandal@jorges { ~/sw }$ ls /home/jscandal/.ipython/
Crash_report_ipython.txt history ipython_config_pylab.py
dbhistory.json ipython_config_pysh.py
I have even moved ~/.ipython elsewhere, but sage will load the ipyth
I think this is known, but I couldn't find the Trac ticket.
If you end a line with a question mark in the notebook, even after a #
(comment sign), the nb interprets this as a request for documentation,
ending with (potentially) amusing/destructive results.
is_prime(5) # Is this number prime?
unkn
I mean ~/.ipython/
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There might be something in ~/.ipythonrc that pulls in your own ipython.
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GCC 4.4.1 is broken, and has been fixed a long time ago. Right now we have
4.4.5 and 4.5.2. Do yourself a favor and upgrade.
There is a patched PARI spkg on trac that will avoid the compiler error at
the cost of decreased performance.
Volker
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Hello,
I downloaded the source version of Sage and I ran into this error
while building:
gcc -c -O3 -Wall -fno-strict-aliasing -fomit-frame-pointer -O3 -g
-I. -I../src/headers -fPIC -o base3.o ../src/basemath/base3.c
gcc: Internal error: Killed (program cc1)
Please submit a full bug report.
I did a clean install, removing from my .bashrc two lines defining the
PYTHONPATH and the PATH variables, opening a new terminal and making sure
there were no traces of those variables in the environment. Sage built ok,
but I got the same error upon starting sage.
Then it occurred to me that I c
On Jan 28, 10:52 pm, "D. S. McNeil" wrote:
> On Fri, Jan 28, 2011 at 9:08 PM, Jeff wrote:
> > I would like to be able to plot a function, e.g. plot(sin), that has
> > axes and ticks on the axes but that does not have labels for the
> > ticks. I understand that I might be able to do this using a
On Jan 28, 11:20 pm, kcrisman wrote:
> On Jan 28, 9:52 am, "D. S. McNeil" wrote:
>
>
>
> > On Fri, Jan 28, 2011 at 9:08 PM, Jeff wrote:
> > > I would like to be able to plot a function, e.g. plot(sin), that has
> > > axes and ticks on the axes but that does not have labels for the
> > > ticks.
On 1/30/11 5:48 PM, Francois Maltey wrote:
Renato a écrit :
Hello, I can't understand how the ticks option works in plot()... I
want to have no ticks or labels on the axis.
Also, is it possible to show the arrows on the axis? like this:
http://www.homeschoolmath.net/blog/few-complex-numbers.gif
Well, some bad and good news:
The bad:
I reinstalled ubuntu (not specifically for sage, as there were other things
I've been trying to solve for a long time, but it helped me decide to do
it), reinstalled sage, and I get exactly the same error.
The good:
I think I am closer now to find the caus
Thanks kcrisman!!!
Maybe the choice of the function sin(x)/x was not a good one...i would
to extend the derivation for generally integral function (F(x)=int_a^x
g(t)dt) where does't exist a primitive of g. I try with some function
and my procedure seems to work.
Thanks!
On 27 Gen, 14:41, kcrisman
I have received the same problem, but I have the impression that it
stopped after having launched Sage in sudo mode once and executing a
small program (nothing special, just some stupid computation). Maybe
Sage tries to write this information in a place that needs sudo?
Otherwise, my sage folder is
On Mon, Jan 31, 2011 at 12:48 AM, Francois Maltey wrote:
> Renato a écrit :
>
> Hello, I can't understand how the ticks option works in plot()... I
>> want to have no ticks or labels on the axis.
>>
>> Also, is it possible to show the arrows on the axis? like this:
>> http://www.homeschoolmath.n
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