[问题] 请问...

楼主: QurtMP3   2006-09-27 16:53:44
请问这题要怎摸解?
我想一个礼拜了...
谢谢!!!
(x^2)y'' - 2xy' + (x^6)y- 18y = 0
楼主: QurtMP3   2006-09-27 17:28:00
补充一下:Laplace,Fourier爆!!!!!应该是变量变换,唤不出来....
作者: wale1105 (wale)   2006-09-27 20:48:00
这题应该可换成Bessel's Equation
楼主: QurtMP3   2006-09-27 22:45:00
怎摸换????Jn(x)吗??

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