2 0Y (y) =C cos( y) D sin( y)https://bgk-photo.cdn.bcebos.com/a50f4bfbfbedab6452edeba1e736afc379311e37.jpghttps://bgk-photo.cdn.bcebos.com/d439b6003af33a875398a67bd65c10385243b5de.jpghttps://bgk-photo.cdn.bcebos.com/0dd7912397dda14464fccad3a2b7d0a20df486de.jpg把边界条件y =0,二! =0代入(2-3-4)得到A=0,所以有Xj(x)二 Bsh( )
2 0Y (y) =C cos( y) D sin( y)https://bgk-photo.cdn.bcebos.com/a50f4bfbfbedab6452edeba1e736afc379311e37.jpghttps://bgk-photo.cdn.bcebos.com/d439b6003af33a875398a67bd65c10385243b5de.jpghttps://bgk-photo.cdn.bcebos.com/0dd7912397dda14464fccad3a2b7d0a20df486de.jpg把边界条件y =0,二! =0代入(2-3-4)得到A=0,所以有Xj(x)二 Bsh( )
发布时间：2025-07-30 22:33:28
