Discussion:
Solving a simple differential equation
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Dumbledore_
2007-02-03 16:27:09 UTC
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"Dirk Van de moortel", a very, very sick bastard who called himself
x''+(c/x^2)=0 . Solve for x in terms of t.
Assuming x(t0) = x0 and x'(t0) = v0, see
http://groups.google.com/group/nl.wetenschap/msg/403dead300de9aa3
to reduce this to
x' = sqrt( v0^2 - 2 c (1/x0 - 1/x ) ) which is another 'simple'
differential equation.
Just write it as
dx / sqrt( v0^2 - 2 c (1/x0 - 1/x ) ) = dt
and integrate between t0 and t to find t(x).
Then 'simply' invert to find x(t) ;-)
Dirk Vdm
[Andro]
HAHAHAHA! What a classic!
I gotta keep that one!
["Dirk Van de moortel", the self-labeled Kacksacker and
very, very sick bastard]
Yes, keep it with the pictures of your daugther.
Dirk Vdm
[hanson]
Dirk, have you no decency at all?. ... Sheesh!
When you step in a dog turd, you scrape the shit from your shoe.
What's the point in being decent to the dog?
Dirk Vdm
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Which one is ewe?
Uncle Al
2007-02-03 23:42:11 UTC
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Dumbledore_ wrote:
[snip]

Nothing

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Behold little Fumblebore
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--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2
Dumbledore_
2007-02-04 00:37:38 UTC
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"Uncle Al" <***@hate.spam.net> wrote in message news:***@hate.spam.net...
[snip river of shit from Schwartzcyst]
Newtonian physics is infinite lightspeed (instantaneous knowledge of
all aspects of a system),
You fuckin' ignorant, stoooopid, LYING bastard!

ROEMER,DOPPLER, MICHELSON, SAGNAC!
http://en.wikipedia.org/wiki/Ole_R%C3%B8mer

"Cassini had observed the moons of Jupiter between 1666 and 1668, and discovered discrepancies in his measurements that, at first, he attributed to light having a finite speed."

http://www.androcles01.pwp.blueyonder.co.uk/mmx4dummies.htm
http://www.androcles01.pwp.blueyonder.co.uk/Sagnac/Sagnac.htm
http://www.androcles01.pwp.blueyonder.co.uk/Doppler/Doppler.htm


Einstein: "we shall, however, find in what follows, that the velocity of light in our theory plays the part, physically, of an infinitely great velocity."
http://www.fourmilab.ch/etexts/einstein/specrel/www/

Get the fuck out of the river of shit, you are the biggest TORD in it, you lying fuckheaded cunt!
Go and worship Nehemiah Scudder!
FUCK OFF and DIE!

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