differential equation

*To*: mathgroup at smc.vnet.net*Subject*: [mg4444] differential equation*From*: "Poon Ming Yan (pmhui)" <mypoon at sun1.phy.cuhk.hk>*Date*: Mon, 22 Jul 1996 03:50:43 -0400*Sender*: owner-wri-mathgroup at wolfram.com

Dear Sir / Madam, 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 ?? Thank you very much for you kind attention. Ming Yan ==== [MESSAGE SEPARATOR] ====