Re: [理工] [微方]一階ODE
看板Grad-ProbAsk作者ntust661 (一千個傷心的理由)時間12年前 (2012/02/01 22:11)推噓11(11推 0噓 14→)留言25則, 10人參與討論串5/5 (看更多)
y※ 引述《dkcheng (電磁霸主)》之銘言:
: Solve the initial-value problem y'-2xy=2 subjecting to y(0)=1.
: 代入條件算不出常數耶...
: 煩請高手
2 2 2
x x x -t
y(x) = c1 e + 2 e ∫ e dt
0
y(0) = c1 + 0 = 1
2 2
x x
y(x) = e + (√π) e erf(x)
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