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- UID
- 223313
- 帖子
- 282
- 主题
- 121
- 注册时间
- 2011-7-11
- 最后登录
- 2013-8-19
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| I know I am way behind this post but I had a hard time wrapping my head around this rule as well. If you are using your calculator would you leave it in END mode? I worked it with n=4 in begin mode originally. |
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发表于 2011-7-13 16:32
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