作者kane950544 (老伯公)
看板trans_math
标题[单变] 一题级数
时间Sun Jun 12 21:17:50 2011
Find the value of
1 1 1 1 1 1 1 1 1
1 + - + - - - + - + - - - +....+ -- + -- - - +....
3 5 2 7 9 4 4k-1 4k+1 2k
有点歪 请见谅
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 118.169.3.112
1F:推 ntust661:ln2? 220.136.227.77 06/12 22:55
2F:推 Indigoa:有限级数???无穷级数??? 140.114.221.96 06/12 23:54
3F:推 keith291:无穷级数非ln2 因级数1/n不绝对收敛 140.112.66.200 06/13 00:24
4F:→ keith291:重排会变值 140.112.66.200 06/13 00:24
5F:→ kane950544:不好意思 是无穷级数 没打清楚 114.24.183.196 06/13 01:20
※ 编辑: kane950544 来自: 114.24.183.196 (06/13 01:20)
6F:→ RLCorn:这题是交错级数吧? 140.115.209.33 06/13 20:41
7F:→ RLCorn:所以是否该用Leibniz收敛准则判断? 140.115.209.33 06/13 20:42
8F:→ kane950544:是要求值喔...而且是交错级数的重排 111.249.15.226 06/13 23:57
※ kane950544:转录至看板 Math 06/13 23:58
9F:→ RLCorn:要先判断收敛才能求值吧 发散就甭求了 140.115.209.33 06/14 12:44