Nonagon construction with straight and compass at error 1.93E-10

It took me hours to find this simple and clear straight &compass method to build Nonagon. and the relative error is less than 1.93E-10. The most interesting thing is that you only  have 3 numbers,2,5,7. that is surpirse me.

这里的帖子也被删过了

渔夫突然发现，渔夫在这里的备份帖子竟然好多不见了，至少2008年或者以前的帖子统统不见了。联想到这个帐号曾经被黑过，真的是很诧异啊。渔夫只是一个普通的市民，即无名也无利，怎么连这么普通的人也不放过呢？太奇怪了。看来又是组织上一次大规模的活动啊。想想自己真的也是可怜，作为纯粹的纳税人，养活了那么多的公务员，竟然是来删我的帖子的，天下哪有这般道理啊。真实无理到极致了。还好现在还没有来要我的命，如果来要命的话，估计也不得不给了，只是让人家付出多大代价而已。不过，善恶到头终有报，只是来早与来迟。那些参与删我帖子的人，我一定要诅咒你们不得好死，全家遭殃，因为你们做了不应该做的事情，所以一定要受到诅咒的。我诅咒这些删我帖子的人，我诅咒这些让人来删我帖子的人，我诅咒那些组织来删我帖子的人，我诅咒这些人不得好死，全家遭殃，现世报应，立刻报应。我诅咒这些删我帖子的人，我诅咒他们，我诅咒他们不得好死，现世受到报应。我的诅咒会立刻生效的，会马上生效的，那些删我帖子的人会立刻受到报应的，会马上报应的。

A simple method to construct Hendecagon with classic method

I am happy to find a simple and clear method to consutruct hendecagon with hyper accuracy 1E-11,the better way than last one. and the accuracy is even better.

The real Chinese School bus in rural area

There was a bus accident in Gansu,China on 16 Nov。2011 .  19 children dead. the bus has 66children jammed in.


the  photo show the accident field.

some children were sent to hospital.

you may wonder how can this 9 seats jam 66 chidlren in. the bus is retrofitted see the above picture.





it is hard to image how these children jam in.see the pictures next which are not the accident bus but very similar.

next pictures are some normal case in Chinese rural area.

But Chinese government donates 23 School bus to Macedonia on 25 Nov.2011

That are what they donate to Macedonia.

I request all Macedonians who see these photos to pass the information to your government and let the donated school bus return to China.please help Chinese children in rural area. The Chinese rural area need school bus more urgently.  Thank you very much. Your kindness will be remembered forever.

Hendecagon construction at error of 1E-11

Good news. I found a better method to construction hendcagon with relative error at 1.27E-11. sounds perfect. I am not sure if I can find much better one.

I am working on it.

hendecagon constrcution with relative error 8.54E-10

With the latest work, I found a better accuracy construction method for Hen-decagon.

this method can reach relative error 8.54E-10.

I am happy to find this better one. I will try to find a much better.

一个五茅蛋让五茅们激动不已（贴图）