Hi!
I'm trying to get a matrix over SR to be callable, much like vectors
are. My code consists of the following:
"
(theta,beta,gamma)=var('theta,beta,gamma')
R_theta=matrix(SR,[[cos(theta),sin(theta),0],[-sin(theta),cos(theta),
0],[0,0,1]])
R_beta=matrix(SR,3,3,[cos(beta),0,-sin(beta),0,1,0,sin(b
Hi!
I'm trying to access Octave thru the worksheet, but I get the error:
RuntimeError: Unable to start octave
I already made a symlink linking /opt/local/bin/octave to /
Applications/sage/local/bin/octave, but that didn't work. Am I using
the wrong PATH?
Also, I set up octave using macports, so
Thanks a lot! It worked. Would be nice not having to go through that,
though :)
On Oct 18, 11:14 pm, John H Palmieri wrote:
> Instead of using jsMath, you could type "latex(a)" to get the LaTeX code for
> the object a. Then you can paste it into a LaTeX document and edit it as
> you please for v
Hi!
I'm working on modeling drums with bessel functions. However, I need
to calculate the zeroes of the bessel functions. Is there any way to
do that?
Thank you very much.
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Hi!
I'm trying to animate a fourier series in terms of time. I use the
animate command, but it won't take a free variable (in my case x).
Here is my code:
q(n,x,t,v,L) = (4/pi)* cos((2*n+1)*pi/8)*sin((2*n+1)*pi*x/L)*cos((2*n
+1)*v*t/L)/(2*n+1)
Qxt(x,t)=q(0,x,t,1,1)+q(1,x,t,1,1)+q(2,x,t,1,1)+q(3,
Hi!
Is there a way to have sage give a certain number of terms in a sum?
And, is there a way to define a function in terms of that sum?
Thanks Very Mucho.
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Hi!
I'm having trouble with sagetex on snow leopard. I keep on getting
this error when I'm making my document in texshop:
Package sagetex Warning: There were undefined Sage formulas and/or
plots.
Run Sage on boaspg69p11.sage, and then run LaTeX on boaspg69p11.tex
again.
I checked my sage code,
Wow...
On Nov 13, 4:22 pm, John H Palmieri wrote:
> On Nov 13, 4:04 pm, Jaasiel Ornelas wrote:
>
> > I'm not quite sure I understand the jsmath Part of sage. Am I supposed
> > to be able to see nice mathematical symbols and not just code?
>
> > i.e. not sqrt(
I'm not quite sure I understand the jsmath Part of sage. Am I supposed
to be able to see nice mathematical symbols and not just code?
i.e. not sqrt(x) but the actual symbol for the square root. Because if
I am... I'm not. I was going through the jsmath menu, and I couldn't
find anything. It says
You sir...
Are...
a genius.
On Nov 11, 12:13 pm, David Joyner wrote:
> On Wed, Nov 11, 2009 at 3:10 PM, Jaasiel Ornelas wrote:
>
> > I'm using:
>
> > Sage Version 4.1.1, Release Date: 2009-08-14
>
> Okay. The above was done with Sage 4.2, so may or
Ok. I'm downloading 4.2 to see what happens, otherwise, I'll just do
it by hand.
On Nov 11, 12:13 pm, David Joyner wrote:
> On Wed, Nov 11, 2009 at 3:10 PM, Jaasiel Ornelas wrote:
>
> > I'm using:
>
> > Sage Version 4.1.1, Release Date: 2009-08-14
>
>
I'm using:
Sage Version 4.1.1, Release Date: 2009-08-14
We just started laplace in my class, so I did not know that laplace
transforms don't solve non linear ode's. Sorry :p
On Nov 11, 12:01 pm, David Joyner wrote:
> On Wed, Nov 11, 2009 at 1:19 PM, Jaasiel Ornelas wrote:
I can't get desolve_laplace to give me a good output. I had already
tried the regular solve (desolve) and it gave to told me that it
cannot solve that equation. This is my code:
sage: (g,t) = var('g,t')
sage: y=function('y',t)
sage: DEiii = pi * (39/100*y + 1/2)^2* diff(y,t) + a * sqrt(2*g*y)
Hey, thanks a lot. I was able to do it, though for my project the R^2
value constantly came out to .
On Oct 6, 12:39 pm, Jason Grout wrote:
> Jaasiel Ornelas wrote:
> > Is there any way to calculate regression lines and regression (R^2)
> > for a set of points in sa
Is there any way to calculate regression lines and regression (R^2)
for a set of points in sage?
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HAHA!!! you are the man!!!
On Sep 29, 9:51 pm, Dan Drake wrote:
> On Tue, 29 Sep 2009 at 08:21PM -0700, Jaasiel Ornelas wrote:
> > Then, when I run sage in the file, I get this error:
>
> > """"""
> > sanponpon:~ jaasiel$ /Applications/sa
tributeError: 'module' object has no attribute 'openout'
""""""
On Sep 29, 4:29 pm, Dan Drake wrote:
> On Tue, 29 Sep 2009 at 11:58AM -0700, Jaasiel Ornelas wrote:
> > ! Undefined control sequence.
> > l.5 ...t, for a total of $26^3 \c
Hi,
I installed sagetex, and am trying to use it trhough texshop.
I followed the instructions for copying the file sage.engine into the
folder ~/Library/TeXShop/Engines/. I'm trying to run the basic code
given in the sagetex.pdf and I get the following errors:
! Undefined control sequence.
l.5
y00])
> if method!="table":
> return soln
>
> and then
>
> x,y = var("x,y")
> dy_dxB(x,y) = cos(x) - sin(x) - y
> eulers_method2(dy_dxB,0,2,0.1,3)
>
> Hope this helps.
>
> 2009/9/24 Jaasiel Ornelas :
>
> > Hi!
&
Hi!
I'm using sage for differential equation problems. My college uses
maple, but I'd rather use sage.
I'm having trouble with eulers method for the diff. eqn. dy/dx = cos
(x) - sin(x) - y.
This is my code up till now:
sage: x,y = PolynomialRing(RR,2,"xy").gens()
sage: dy_dxB = cos(x) - sin(x
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