Try this :
sage: var("x, t") ## t will be used later
(x, t)
sage: y=function("y") ## Note : no default argument
sage: sol=desolve(diff(y(x),x)==(x*y(x)^2 - cos(x)*sin(x) )/(y(x)*(1 - x^2))
,y(x), ics=[0, 2]) ; sol ## Note : specify y argument
1/2*(x^2 - 1)*y(x)^2 + 1/2*cos(x)^2 == (-3/2)
In Sage, is it possible to find a such that
\int_{a}^{\infty} e^(-x^2/2) dx=2^(-20)
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Hi,
I got this balanced ternary file from rosetta, it works fine in python2 but
not completly in sage : b variable which convert number in ternary is
failing, a problem of conversion but I don't know how to correct it ?
Any help ?
Thanks
Kind regards
Henri
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-- Lou Pecora
Original Message
Subject:Problem starting
Date: Tue, 24 Jun 2014 12:12:58 -0400
From:
I just sent the message below to you, but it looks like I was trying to
start from the .dmg image which is no-write. Sorry. Ignore my previous
message for now.
Yes, this would probably cause this error. Good luck!
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On Wednesday, July 10, 2013 4:26:02 PM UTC-4, Flavio Coelho wrote:
Hi,
I am trying to plot the solutions the following system of ODEs
var('t')
A = function('A',t)
B = function('B',t)
de1 = diff(A,t) == -k1*A+k2*B
de2 = diff(B,t) == k1*A-k2*B
We're missing some info here. If I make
I've opened http://trac.sagemath.org/sage_trac/ticket/14877 for the
potential confusion of having the wrong number of initial conditions.
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It would be better if you posted the matrix complete, or if it's a
complicated expression, try to simplify it in a way that the error is
still produced. It is difficult to imagine what the problem could be
with so little information.
Oscar
On Aug 28, 6:18 am, samrat samluvs...@gmail.com wrote:
I know this is really basic, but for some reason I cannot figure this
out and my searching (here, sage website, google, etc) has not yielded
me any results! I just started using sage, literally, yesterday.
I am using solve() to solve an equation for q1 in terms of q2. The
solution of this is
Hi,
i post this here for future newbies who might encounter the same problem...
** on Linux/Ubuntu 8.04, under Firefox 2 or 3, with all TexFonts
installed, i kept having this error message :
It looks like jsMath failed to set up properly (error code -7)
for a single
sage : show(x^2)
command.
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