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Re: [微積] (1/π)∫xe^(-│x│)sin(wx)dx,積分範댠…
[ Math ]2 留言, 推噓總分: +2
作者: ntust661 - 發表於 2011/06/15 16:40(14年前)
2Fandyjy12:sin(x) =Im (e^ix) -> S dx x exp(-(1-iw)x)06/16 13:23
[其他] 0乘以無限大為何? 如何證明?
[ Math ]23 留言, 推噓總分: +11
作者: cutbanana - 發表於 2011/06/10 00:24(14年前)
21Fandyjy12:那工程式的解法是按計算機 > 0x999....999 = 0 XDDDD06/10 11:21
[微積] 關於 sin(x)/x 當 x→0 之極限
[ Math ]4 留言, 推噓總分: +3
作者: yhliu - 發表於 2007/04/23 12:28(18年前)
2Fandyjy12:sin微分的定義,不是會用到sinx/x ?04/23 16:03
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