家住蒲汇塘边，闲来打渔为生.大陆帖子常被和谐，所有博客都曾被关闭。此地来偷闲。
My blog were censored or blocked in mainland China. To backup my files, post here.
2011年1月7日星期五
construct a Nonagon with Hyper accuracy by compass and straight
I just found another new method which can create Nonagon central angel with hyper accuracy. The relative error is about 4.6E-8. I think it is the best accuracy so far.
I just found another new method which can create Nonagon central angel with hyper accuracy. The relative error is about 4.6E-8. I think it is the best accuracy so far.
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