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MathGroup Archive 1996

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Re: differential equation

  • To: mathgroup at
  • Subject: [mg4424] Re: differential equation
  • From: "Kevin J. McCann" <kjm at>
  • Date: Mon, 22 Jul 1996 00:29:25 -0400
  • Organization: Johns Hopkins University Applied Physics Lab, Laurel, MD, USA
  • Sender: owner-wri-mathgroup at

Poon Ming Yan (pmhui) wrote:
> I have a differential equation to solve, which is
> f''(x) + f(x)( A*cos[B*x] - K ) == 0
> where A,B and K are constants.
> Is it a mathieu equation ??

Check out Abramowitz and Stegun Handbook of Mathematical Functions ("Big
Red") Chapter 20:

Mathieu DE:

		y'' + [a - 2q cos(2x)]y=0

is the canonical form.



email:		kjm at

snailmail:	Kevin J. McCann
		Johns Hopkins University APL
		Johns Hopkins Road
		Laurel MD 20723-6099

phone:		(301) 953-5476
fax:		(301) 953-5950

The difference between science and the fuzzy subjects is that science
requires reasoning while those other subjects merely require
                -- Robert Heinlein


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