Re: Preposterous change of variables


actionintegral@xxxxxxxxx wrote:
Igor wrote:
actionintegral@xxxxxxxxx wrote:
Igor wrote:
actionintegral@xxxxxxxxx wrote:

Who says you're in a frame

I understand perfectly now. Saying "my friend is at x=5" and then
saying "let u=x-5. My friend is at u=0" is distinct from saying "I am
where my friend is".

That said, maybe someone can help me understand the d'alembert solution
to the schroedinger equation. I did this with u=x+ct, v=x-ct.
Then I got nervous and changed the "c" to a "v".

Now I don't know what the h******ell to think.

But the Schroedinger equation is parabolic, meaning that it's first
order in time and second order in spatial coordinates, so how would
this substitution help there? Frankly, I don't see the advantage.

.

Relevant Pages

  • Re: IV ABX Study for Psychosis
    ... my greatest memory of the event was my friend. ... grabbing my arm and sinking her fingernails in and saying, ... medical doctors with a speciality in psychiatry. ... Lyme nightmare quest for dx though. ...
    (sci.med.diseases.lyme)
  • Re: speaking of Judas
    ... claiming staying in a failed marriage makes the devil happy; ... When my beloved friend first stated the counselor said that discussing ... committing to a new start is one thing, saying the past has no bearing ... saying those hurts don't matter. ...
    (rec.arts.sf.tv.babylon5.moderated)
  • Re: Things to Say After Farting
    ... According to BSneed, after Czechs let out a silent fart, they announce the fact by saying, "Soytka," to let their friends know they might be smelling something. ... Altond had a high school friend who would say, "Catch that and paint it blue!" ... According to the latest poll by CBS, his job approval rating is the lowest ever recorded on that question, since the poll first began in 1983!! ...
    (alt.guitar.amps)
  • Re: Kev Hlub Ob Tiam
    ... Listening to her parents' comfort, ... to him saying that she does not wish to wait any longer. ... my girl learn sign language & started a new ... friend came & told her that I'm back. ...
    (soc.culture.hmong)
  • Re: Austrian incest victim will talk of 24-year ordeal on TV
    ... about saying something, and then thought about not saying something. ... suggesting to the poster that said poster might need therapy. ... suggestion "find a therapist, you need to talk to someone"). ... it might be better to grab a friend and head off ...
    (alt.true-crime)