luis@linux-smne:~> cd
Documentos/sage/sage-4.5.3-linux-32bit-opensuse_11.1_i586-i686-Linux/^C
luis@linux-smne:~> cd
Documentos/sage/sage-4.5.3-linux-32bit-opensuse_11.1_i586-i686-Linux/
luis@linux-smne:~/Documentos/sage/sage-4.5.3-linux-32bit-opensuse_11.1_i586-i686-Linux>
ls
COPYING.txt devel
When I use sage from the command line I get the following error message:
sage: integral(x,x)
'import site' failed; use -v for traceback
Traceback (most recent call last):
File "/home/oscar/sage-4.5.2/local/bin/sage-cleaner", line 21, in
import os, shutil, sys, time, socket
File "/home/
Hello!
I'm trying to solve this ODE:
var('t alpha beta n')
x=function('x',t)
eq=diff(x,t)^2==alpha-beta abs(x)^n
assume(n,'integer')
desolve(eq,x,ivar=t,contrib_ode=True)
but I get:
Traceback (click to the left of this block for traceback)
...
Is n an integer?
but I've already told sage that
Hello people! I came across this problem while trying to install an spkg:
checking pcre.h presence... no
checking for pcre.h... no
configure: error: Need the pcre library; get it from
http://www.pcre.org/ . Make sure to set CPPFLAGS if necessary.
make: *** No se especificó ningún objetivo y no s
Hello!
I've come across this strange bug:
sage: var('x y')
(x, y)
sage: a=x-y/x
sage: a
x - y/x
sage: print a
x - y/x
sage: latex(a)
x + \frac{y}{x}
that last + should be a -. This also doesn't work in the notebook, using
print a works, but show(a) shows the expression with a plus sign.
Any
I've downloaded the file:
http://www.sagemath.org:9001/TeXmacs?action=AttachFile&do=view&target=texmacs-sage.tar.gz
and extracted it in
~/.TeXmacs/plugins
as the instructions say (in http://www.sagemath.org:9001/TeXmacs)
but when I start TeXmacs there is no SAGE option in Insert -> Session .
Hello!
I've got a problem with Jmol. It shows a gray square, then it shows a
black square, but the plot never appears. In my status bar I see the
following messages:
Starting subprogram, subprogram started, script 1 started, jmol script
terminated.
The funny thing is that although Jmol doe
I untarred sage-4.4.4, then cd sage-4.4.4, then make. I got the
following error:
Error building Sage.
./sage -docbuild all html 2>&1 | tee -a dochtml.log
**
You must compile Sage first using 'make' in the Sage root director
Hey guys, what's wront with this integral?
sage: integral(x^3/(e^x-1),x,0,oo)
Traceback (most recent call last):
File "", line 1, in
File "_sage_input_5.py", line 5, in
integral(f,x,_sage_const_0 ,oo)
File "", line 1, in
File
"/home/oscar/sage-4.3/local/lib/python2.6/site-packages
A friend of mine is having trouble compiling this Cython code in a
notebook cell:
%cython
def resto(int n):
lfact=[]
cdef int i
for i in range(1,n):
if n%i ==0:
lfact.append(i)
tot=sum(lfact)
return n-tot
puntos=[(i,resto(i)) for i in range(2,8131)]
print l
A friend of mine proposed me the following problem:
A reporter asks a military officer how many soldiers are at a certain
military base. The officer, not wanting to reveal such sensitive
information, but also not wanting to seem overly secretive, gives an
indirect answer:
When my soldiers fo
Given the great power difference between sage and scientific
calculators, I've wondered: wouldn't the calculator manufacturers be
interested in using sage (or parts of sage) in their hardware? I'd love
to see a portable device allowing me to use Python without having to
turn on a computer.
Ju
I'd like to call attention to the fact that parametric_plot3d cannot
plot curves (or surfaces) that include complex values. This is despite
that it's documentation states that:
By default for a curve any points where fx,
fy,
or fz do
not evaluate to a real number
are skipped.
for example:
va
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:
When sage has to display a variable whose name is a greek letter it
shows the
corresponding greek letter. For example
sage: show(var('alpha,beta,gamma'))
will show the simbols for this letters, instead of
(alpha,beta,gamma)
This sort of association is what I think sage should use with the
im
wouldn't it be a good idea to hard-code certain mathematical expressions
into sage
like pi, I , and e as sage additional keywords so that they could not be
variable names?
I had a hard time figuring out what was happening when my e^x expression
didn't work
because i had made e into a string w
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