Re: [理工] [工數] 2階ODE 幫忙看一下!!!!!~~~~
※ 引述《topee (eason)》之銘言：
: y"(x) + y'(x) -2y(x) = 0 y(0)=4 y'(0)=-5
: find y(x)=?
: 這種題目該用什麼方法下手?
:
:
:
:還有這題~
:
:x^2y" + xy' + (x^2 - 1/4)y = 0
:
:find the general solution
:(Note: one term for one basis)
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