来自李海洲的问题
【大学高等数学急救原题如下:solvetheinitialvalueproblem.y''+xy'+(2x^2+1)y=0,y(0)=1,y'(0)=-1.Calculateanapproximatevalueofy(1/2)usingthefirstfivetermsofthepowerseries.Howmuchwouldthisvaluechangeifyouinsteadusedthe】
大学高等数学急救
原题如下:
solvetheinitialvalueproblem.
y''+xy'+(2x^2+1)y=0,y(0)=1,y'(0)=-1.
Calculateanapproximatevalueofy(1/2)usingthefirstfivetermsofthepowerseries.Howmuchwouldthisvaluechangeifyouinsteadusedthefirstsixtermsofthepowerseries?
不可以用matlab
