Recent content by makasx

since \Psi goes to zero at +/- infinity, then \frac{\partial\Psi}{\partial x} also goes to zero at +/- infinity, that helps me thx

I found some example questions with reducing equations and answers, also find my problem's reducing equations;(from KREYSZIG -advanced engineering mathematics) thx http://img41.imageshack.us/img41/43/exampless.jpg

yes I couldn't do this in exam, I try it in two way * y= \sum_{n=\zero}^\infty C_nx^{(n+r)}} from this I found \frac {dy}{dx} and \frac {d^2y}{dx^2} and put them to equection and go on with frobenius method but I couldn't find "r" becouse of too many indicial equations so I couldn't find...

this is my final exam question, I can't figure how to start thx for your help " Obtain the solution of the following differential equation in the form of bessel equation; x^2\frac{d^2 y}{dx^2} + \frac{1}{8}{x}\frac{dy}{dx} + (k^4x^8-6)y=0 "