MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

variable substitution in differential eqns


For Calculus of Variations, I need to make some hairy variable
substitutions.

A simple substitution example is shown here in the first few lines.

See
http://mathworld.wolfram.com/Second-OrderOrdinaryDifferentialEquation.html

If I make the substitution x=1/z how can I get Mathematica to give
me eqn (2)
and eqn (5)
and, being greedy, eqn (6)?
or point me to where to begin.

Thanks
Joe 



  • Prev by Date: Mathematica 1
  • Next by Date: Cell execution dependence
  • Previous by thread: Re: Mathematica 1
  • Next by thread: Re: variable substitution in differential eqns