HDTenEightyP/NetNews huggingface dataset:
From: ding@eng.auburn.edu (Z. Ding)
Newsgroups: soc.culture.china
Subject: Re: math problem
Date: 13 Dec 92 16:28:12 GMT
Article-I.D.: bell.ding.921213102812
Organization: Auburn University Engineering

In article <9212110333.AA13492@mariner.sce.carleton.ca> li@sce.carleton.ca (Yao Li) writes:
>                            Math Problem
>                            ------------
>
>Getting bored? Here is a math problem.
>
>There is a polynomial:
>       -a*y**n + y**(n-1) + y**(n-2) + ... + y + 1 = 0
>where real number a>0 and the notation "y**n" represents the nth power of y.
>
>It's conjectured that this polynomial has a unique positive real solution y.
>
>Can you prove it or find a counter example?
>

It appears to me that the conclusion depends on the range of "a" and
whether $n$ is odd or even.

Example:  n=1 ==> y=1/a is the only positive solution.

Example:  n=2 and a=2 ==> y=1 and y= -0.5 are both solutions.

So the conjecture does not hold even for the simple example above.
Newsgroups: soc.culture.china
From: wang@math.psu.edu (Feng Wang)
Subject: Re: An Old Arithmatic Problem
Reply-To: wang@math.psu.edu
Organization: Dept. of Mathematics, Penn State University
Date: Thu, 17 Dec 1992 04:19:41 GMT

In article D8C@mentor.cc.purdue.edu, b4k@mace.cc.purdue.edu (Ming Luo) writes:
>In article <1992Dec16.194437.14870@risky.ecs.umass.edu>, mirsip@risky.ecs.umass.edu (Ivan Popstefanija) writes:
>> >
>> >Do you know a poker game called 24 points?  If you know it, you know the 
>> >rule.  There are four cards, 5, 5, 5 and 1.  Find an arithmatic expression
>> >using all the number once and only once to get 24.
>> 
>> 5*(5-1/5)
>	Since we are in the game mood, let me throw one in. I won a T-shirt
>for solving it.
>
>	On the left, there is a bucket of water. On the right, there is a
>bucket of juice.
>	If you take one spoon full of juice from the right bucket, add it
>to the water in the left bucket. Stir it till uniform. Then take the same
                                  ^^^^^^^^^^^^^^^^^^^^
	You don't even need to stir it uniform.

>spoon full of the mixed solution from the left bucket, add it back to the
>right bucket. Now the two buckets have the same original volumes.
                                            ^^^^^^^^^^^^^^^^^^^^^
                                            This is the key point.  You can
        well do many crazy kind of mixings with these two buckets, but as
        long as you set the resulting volumes to be the same, the amount
        of alien liquid in each bucket is the same.  Of course, we are
        assuming volumes are simply added up when mixing two kinds of
        liquid.

>	Question:
>
>	Did you put more juice into water, or more water into juice?
>
>No rules. No more hints. Give the answer and prove it.




Newsgroups: soc.culture.china,soc.culture.taiwan,soc.culture.hongkong
From: huangs@ecf.toronto.edu (HUANG SUNG CHING)
Subject: Re: Is Hong Kong people Chinese? (Was: Re: Is Taiwanese CHinese?)
Organization: University of Toronto, Engineering Computing Facility
Distribution: na
Date: Fri, 18 Dec 1992 06:46:46 GMT

In article <BzF77B.IvK@acsu.buffalo.edu> v999rke8@ubvmsd.cc.buffalo.edu writes:
>I am not a "stupid CCP supporter", But I still have a very stupid question
>to ask:
>
>If you TIers don't think you are Chinese, why do you keep posting so many 
>offensive articles in this soc.culture.china news group? 

     This is because Mainland CCP supporters are posting offensive articles
in soc.culture.taiwan, so why can't the TI supporters?  This is a free world
you know, not China.  Besides, if you would notice the newsgroups, there
are soc.culture.taiwan and soc.culture.china, so there is a cultural difference
between Taiwan and China.
  >
>Taiwanese is not Chinese if China and Taiwan are two different countries. 
>Unfortunately to those TIers, although there is two governments, there is 
>only one country. 

     For the TIers, if Taiwan goes independent, there will be two countries.
From: lu_j@cubldr.colorado.edu
Newsgroups: soc.culture.china
Subject: looking for Zhang XiaoLiang
Date: 19 Dec 92 22:23:26 GMT
Organization: University of Colorado, Boulder

Hi, everybody. I am looking for a guy named Zhang Xiao-Liang, studying at 
INSTITUTO NACIONAL DE INVESTIGACAO CIENTIFICA in Portugal. His e-mail
address is DX471@ALFA.IST.RCCN.PT. I tried but the mail bounced back for
unkown host. Could someone can help me to find him or his e-mail address?
Thanks.

LU_J@cubldr.colorado.edu
From: yding+@pitt.edu (Yijun Ding)
Newsgroups: soc.culture.china
Subject: Re: fun problem No.2 continued
Date: 18 Dec 92 17:07:07 GMT
Distribution: usa
Organization: University of Pittsburgh

In article <932@blue.cis.pitt.edu> yding+@pitt.edu (Yijun Ding) writes:
>Just relized that the above should be:
>
> m/(m+n)*(m-1)/(m+n-2) + n/(m+n)*m/(n+m-2)
>
>The rest can be worked out accordingly.

Sorry that I can't cancel the previous article.  The result is
that switch in this case since
  
 m/(m+n) < m/(m+n)*(m-1)/(m+n-2) + n/(m+n)*m/(n+m-2)

-- 
//Yijun Ding, Pittsburgh //Go your way, be happy.
From: qye@next11 (QIAN YE)
Subject: Re: a math problem for those who want to challenge china's math champion
Organization: Michigan Technological University
Date: Mon, 14 Dec 1992 19:40:51 GMT

In article <00965125.C67B2F40@Msu.oscs.montana.edu>  
uphhswh@Msu.oscs.montana.edu writes:
> this is one of the 6 problems in the final contest of national math  
contest of
> 1986.
> a plane is filled with any way by either black or white points. Prove  
that:
> there must exist one equi-lateral triangle whose 3 vertex are same  
color.
> 
> I dont think there was more than 10 contestants that worked it out  
(judging by
> average sores and that it is the last one of 6 problem.)  I dont know  
the
> answer, which is why I didnt choose math as my career.
> 
> Wei Huang --- future world No1. of xxx-ology.
One of my friend figured it out in the competition. he is now is Caltech  
and study physics. His E-Mail address is ghe@daedalus.caltech.edu. but he  
never reply any e-mail. If you really want to know the answer, you should   
call him. the phone-number is (818)584-6388.
From: pwu@ai.mit.edu (Peng Wu)
Newsgroups: soc.culture.china
Subject: Re: Riddles, any takes?  Was: Puzzles & picutures
Date: 20 Dec 92 02:36:21
Organization: MIT Artificial Intelligence Laboratory
NNTP-Posting-Host: portofino.ai.mit.edu
In-reply-to: zzuo@iastate.edu's message of Sat, 19 Dec 1992 02:39:25 GMT

    From: zzuo@iastate.edu (Zhiqi Zuo)
    
    In article <PWU.92Dec18172621@vernazza.ai.mit.edu> pwu@ai.mit.edu (Peng Wu) writes:
    ...
    >What can run but can't walk?
    
    Time.
    
    >Why does a pencil seem heavy when you write with it for a long time?
    
    It becomes reluctant.
    
    >What time is the same when you spelled backwards?
    
    noon.
    
Hurrah!  You got this one right.

    >Who was the first to have a mobile home?
    
    Her grandchild.
    
    >What helps keep your teeth together?
    
    A coffin.  :=(
    
    If this question had been "what can help ...", then the 
    answer could have been: A gold box.
    
    >Why should you never tell secrets in a garden?
    
    Will anybody listen to me? (Who wants to follow Adam and Eve's 
    step after they knew only one secret?)
    
    >    -- A childish poster
    
    PS: there are tons of answers for each, I guess.

There are good answers and bad answers.  For instance, it would be awkward to
say "time is running" (it would be fine to say "time is running out/short" but
this expression does not connect with the question), and "reluctant" does not
have an apparent connection with "heavy."  So, you are on the right track by
need to try harder.
Newsgroups: soc.culture.china
From: zzuo@iastate.edu (Zhiqi Zuo)
Subject: Re: a fun problem
Organization: Iowa State University, Ames, IA
Date: Wed, 16 Dec 1992 23:55:00 GMT

In article <850@blue.cis.pitt.edu> yding+@pitt.edu (Yijun Ding) writes:
>In article <1992Dec16.175720.9520@ee.rochester.edu> yao@ee.rochester.edu (Meng Yao) writes:
>>I am not kidding, sir. This should be harder than the 24 point game. Up 
>>to now, I have received only one reply from someone in Pittsburg and I
>>don't know if he has got the correct answer or not, because his mail
>>was destroyed for no reason before I could get a chance to read it.
>
>I guess my mail trashed. The answer is bit too complicated to state, but
>here goes (just try to be high school kid again):
>
>put 4 balls on each sides:
>if( 4 = 4 )  /* all 8 balls are good balls */
>  put 3 from remain ones against 3 good balls
>  if( 3 = 3) weigh one of remain two with a good one.
>  if( xxx > 3 good balls)  /* the bad ball is heavy */
>    take 2 from the heavys.
>    if( x = x) the remain one is bad, and is heavy
>    if( x > x) the heavier is bad
>  else if(xxx < 3) ... same
>else if(xxxx > oooo)  /* the remain 5 are good, x=heavy o=light */
>weigh (xxxoo against the 5 good ball)
>if( 5 = 5) /* the question balls are xoo */
>  if( xo = 2 good balls) the remain o is bad
>  if(xo > 2 good balls) the x is bad
>  if(xo < 2...) the o is bad
>if( xxxoo > 5 good balls)  /* the bad is in xxx */
>  if(x = x)... same as before
>if( xxxoo < 5 good balls) /* the bad is in oo */
>  ... obvious.
>
>All except one case, we not only can find the bad ball, but tell if 
>it is heavy or light.
>
>-- 
>//Yijun Ding, Pittsburgh //Go your way, be happy.

A Very impressive solution!
From: 5546yuj@vms.csd.mu.edu
Newsgroups: soc.culture.china
Subject: Sicuan U Alumni
Date: 18 Dec 1992 17:22:10 GMT
Organization: Marquette University - Computer Services
Reply-To: 5546yuj@vms.csd.mu.edu
NNTP-Posting-Host: vmsf.csd.mu.edu


--------- Sichuan University Alumni Net -------

We are trying to set up a net connecting Alumni from Sichuan University (SU)
(Chengdu). The current purpose of this net is to communicate.
If interested, please send your information to this address: 
5546yuj@vms.csd.mu.edu.
You may use the following format:

Name          Major         Grade      Current School

Ran, Yujun    Physics       80         Marquette U. (WI)
Jang, Bo      Math          85         Marquette U. (WI)


We will distributing the updated list to the SU net. We currently has 10 people 
on this net.


Thank You.
Newsgroups: soc.culture.china
From: yu@physun.physics.mcmaster.ca (Fan Yu)
Subject: Re: 1 dime + 1 quarter = 35 cents
Organization: Dept. of Physics & Astronomy, McMaster University
Date: Tue, 15 Dec 1992 02:28:07 GMT

In article <1992Dec14.211350.1@uwovax.uwo.ca> wmleolau@uwovax.uwo.ca writes:
>In article <Dec.14.18.18.17.1992.3094@soliton.rutgers.edu>, zzhang@soliton.rutgers.edu (ZhiZhong Zhang) writes:
>> Ok, two coins, a dime and a quarter make up 35 cent, right? Now, can you 
>> make up 35 cents from two coins when one of them is not a quarter?
>> ZZZ
>-- 
>
>Check the foreign money exchange table and find a combination of 2 foreign
>coins give the value of US 35 cent.
>
>Raymond Kwok

Is this the official answer?? How many do we have now, anyone kept a record?
Unfortunately, I think the probability of finding one on any given day is, 
well, uh, zero. :-) 

FY
Newsgroups: soc.culture.china
From: JIE GE <S13978JG@umassd.edu>
Subject: (none)
Organization: The Ohio State University; Department of Phyiscs
Date: Sat, 12 Dec 1992 21:39:18 GMT

To whom it may concern:
    I am a chinese student at UMass Dartmouth. I am eager to get some 
information on how to join the soc.culture.china discussion group.
    Thanks in advance for any helps.
						Jie Ge
Newsgroups: soc.culture.china
From: fisk@kimbark.uchicago.edu (magnus  fiskesjo)
Subject: electronic chinese typewriter for sale
Reply-To: fisk@midway.uchicago.edu
Organization: University of Chicago Computing Organizations
Distribution: usa
Date: Mon, 14 Dec 1992 19:02:34 GMT

Japan's SHARP and China's GUANGMING SOFTWARE INC. has produced the 
chinese-english electronic typewriter GMS-2000. It has several fonts
of both simplified and regular chinese characters, in all ca.8000,
and writes on normal size small floppies. Runs on batteries and/or
electric power. Adaptor included for 220V (was made for Chinese
market). The price new was 120,000 yen (bought factory new in Japan). 
I have a used  one for sale. Price negotiable. 
Serious buyers pls contact me over e-mail,
address is fisk@midway.uchicago.edu
Bye now
Magnus

Newsgroups: soc.culture.china,soc.culture.taiwan,soc.culture.hongkong
From: joe@athena.mit.edu (Joseph C Wang)
Subject: Re: DATA: largest world economies
Followup-To:  soc.culture.china,soc.culture.taiwan,soc.culture.hongkong
Organization: Massachusetts Institute of Technology
Date: Sat, 12 Dec 1992 03:25:24 GMT

In article <1992Dec10.215820.12274@cbnews.cb.att.com> liaohen@cbnews.cb.att.com (Heng-Hsin Liao) writes:
>Taiwan, as an entity, takes care of it's 20 million people's welfare on
>it's own. 

No area of the world is "on its own." 

>Unfortunately, our KMT authority
>just don't want to give up a lot of nonsenses. It's a joke that our
>government just hate to say that Taiwan is a country. Instead, they
>still insist using ROC.

It's not a joke.  Throughout history, a lot of people have wanted to
be Chinese, and the idea of Chinese was broad enough so that these
people eventually became Chinese.  At the beginning of the Chou
dynasty the state of Chu was considered "definitely not Chinese" while
by the end Chu became Chinese.  

The problem that you have is not with the KMT.  The problem is that
most of the people on Taiwan either want to be considered Chinese or
don't care whether or not they are Chinese and so are unwilling to
change the government on Taiwan solely because of that issue.

>Anyway, that's our own problem. People like me
>are still fighting for the fact.

I don't see much chance of you winning.



Newsgroups: soc.culture.china
From: xzg1397@uxa.cso.uiuc.edu (Xin Zhou )
Subject: Re: 24 points poker game: answer and new game.
Organization: University of Illinois at Urbana
Date: Wed, 16 Dec 1992 02:27:18 GMT

chenx@cua.edu writes:

>Yes, for the people who were interested in the 24 points poker game
>this morning, the correct answer was posted by some one in this group.

>	5*(5 - 1/5) = 24

>I am glad to see that some one has developed a whole class of problems
>similar to this one.

>Now, here might be another one which might be easier than the previous one.
>You may try to think about it in head, do not use a pencil and a piece of 
>paper.  If you write it down, it will be too easier for you and you will
>not have fun, right?

>Now, the four numbers are

>	10	10 	4 	4

>and calculate 24.

	(10*10-4)/4=24   too easy :-)


Newsgroups: soc.culture.china
From: zzuo@iastate.edu (Zhiqi Zuo)
Subject: Re: Is Chairman Mao God?
Organization: Iowa State University, Ames, IA
Date: Wed, 16 Dec 1992 02:03:37 GMT

In article <1992Dec16.013903.4509@wam.umd.edu> shicheng@wam.umd.edu (Shicheng Jiang) writes:
>In article <BzBJC1.5GD@news.iastate.edu> zzuo@iastate.edu (Zhiqi Zuo) writes:
>>He was.
>
>No.
>Every man in the Universe is God's son. Every woman is God's daughter.
>Jesus was a son of God. So, he was your brother. Mao was your brother too.
>-- 

Well, I don't want to tell my father about this TRUTH.  :G

>-------------------------------------------------------------------------------
>|  The laws sometimes sleep, but never die.      --- Mr. Anonymous            |
>-------------------------------------------------------------------------------


Newsgroups: soc.culture.china
From: shicheng@wam.umd.edu (Shicheng Jiang)
Subject: Re: Question about being adopted by an American Family
Organization: University of Maryland, College Park
Date: Wed, 16 Dec 1992 16:37:00 GMT

In article <1gng22INNddh@apache.dtcc.edu> wang@apache.dtcc.edu (Wang Gang) writes:
>My friend wants to know what benefit he will have after being adopted by
>an American family.
>
>He is now a poor F-1 student fighting for survival.
>
>--wang

It's not a bad idea. At least he can find a well-payed part time job 
to help finish his degree now.
-- 
-------------------------------------------------------------------------------
|  The laws sometimes sleep, but never die.      --- Mr. Anonymous            |
-------------------------------------------------------------------------------
Newsgroups: soc.culture.china
From: zzuo@iastate.edu (Zhiqi Zuo)
Subject: Re: Which box will you take?
Organization: Iowa State University, Ames, IA
Date: Thu, 17 Dec 1992 22:26:14 GMT

In article <0096539E.3E68EB80@Msu.oscs.montana.edu> uphhswh@Msu.oscs.montana.edu writes:
...
>when you are given two boxes, the money in them has been determined. there is
>only one pair of numbers in this problem, not 3 numbers: 200,100,400.
>probability is a subset in the whole REAL events set.  

It was not wrong to say that the possibilitie of both $400 and $100 
are all 50%. But we can't take the expectation value here, because 
ONLY ONE of the two evants can occur, if we REPEAT the process. 

>W.Huang --- nothing difficult
             ^^^^^^^^^^^^^^^^^ take it easy!                   
 


Newsgroups: soc.culture.china
From: fengxi@prancer.eche.ualberta.ca (Fengxi Zhou)
Subject: Re: NEWS: Survey Article of Chinese Economy
Organization: University Of Alberta, Edmonton Canada
X-Newsreader: Tin 1.1 PL3
Date: Sun, 13 Dec 1992 03:28:29 GMT

s245@cs.utexas.edu (Spring Class Account) writes:
: In article <1992Dec11.014138.14992@umbc3.umbc.edu> yzhang@math12.math.umbc.edu (Yin Zhang) writes:
: >I wonder whether the net is being monitored (that requires
: >a lot of manpower) or some small reports were delivered.
: 
: Second hand information :
: 
: I heard the US has an agency which monitors the network etc , and its
: 
: budget is 6? times that of the CIA.
: 
: 
I am sure you have heard of National Security Agency (Authority?) or NSA but
didn't relate it to your question. NSA is responsible for electronic information
gathering, including monitoring communication and saterlite photo, etc. It is
arguably the biggest intitution in US intelligence community but has a much
lower profile than CIA for good reasons. It would be no surprise to me if they
monotor the net traffic. This is much easier than monitor conversation off the
air, don't you think? And this way, they can compile info about every netter's
political tendency, etc, without the need of huge manpower. NSA has been among
the first users of the latest super computers for long time. They have more
tricks of identifying friend and foe up in their sleeves than we can think of.
Newsgroups: soc.culture.china
From: yangze@acf3.nyu.edu (Ze Yang)
Subject: Re: math problem
Organization: New York University
Date: Sat, 12 Dec 1992 19:39:17 GMT

li@sce.carleton.ca (Yao Li) writes:

>                            Math Problem
>                            ------------

>Getting bored? Here is a math problem.

>There is a polynomial:
>       -a*y**n + y**(n-1) + y**(n-2) + ... + y + 1 = 0
>where real number a>0 and the notation "y**n" represents the nth power of y.

>It's conjectured that this polynomial has a unique positive real solution y.

>Can you prove it or find a counter example?

>If succeed, please send me your solution. I will post the results later.

>Happy challenge!

>Li Yao
>li@sce.carleton.ca

It seems to be easy:

Multiply both sides of the equation by (y-1), you get:
    (1+a)*y**n-a*y**(n+1)-1=0
Let's call the left hand side as f(y),
Then  
    f'(y)=n*(1+a)*y**(n-1)-(n+1)*a*y**n
         =[n*(1+a)-(n+1)*a*y]*y**(n-1)
We see that f(y) increses till it gets to its maximum at
    y=n*(1+a)/[a*(1+n)]
then decreases.
We also have f(0)=-1 < 0
The maximun value of f(y) should be greater than or equal to 0
since we know f(1)=0.
If the maximum occurs at y=1, a should be equal to n, the maximum
is 0, the only crosing 
point is y=1, y=1 is a solution (checking this by plug y=1 to the
oringal equation).
When the maximum does not occur at y=1, the maximum is greater than 0,
there are two crossing points, but a!=n so y=1 is not a solution of 
the original equation, the other crosing point is the solution.

So there is only one solution always.

Ze Yang

Newsgroups: soc.culture.china,soc.culture.hongkong,talk.politics.china
From: cshi@cs.ulowell.edu (Chunde Shi)
Subject: Re: Respose to Jian Chen's 8th article
Organization: University of Massachusetts at Lowell Computer Science
Date: Thu, 17 Dec 1992 01:36:56 GMT

In article <1992Dec16.143233.5930@jupiter.sun.csd.unb.ca> y70q@jupiter.sun.csd.unb.ca (LAM) writes:
>In article <RPT=aG#@engin.umich.edu> chen@caen.engin.umich.edu (Jian Chen) write
>From Jian Chen's 8th article, he mentioned China is enjoying its
>great economic growth. This is true, but what is the underlying fact?
>Will China still enjoy this growth if no foreign companies invest
>to China? What I really think is that Communism only cannot help
>the economic growth of China. What China is doing now is allowing
>Capitalistic foreign companies to go into China and Help China's
>economy. Without Capitalistic foreign companies, can China still
>have the economic growth? In summary, Communism cannot help China
>a lot until Capitalism run into China.
This kind of prevailing "theory" in the West is for Westeners self serving.
1. Foreign companies are only small potion of China's economy;
2. Capitalistic world learned quick from socialist after depression, to
transfer wealth to working class.
3. market and free enterprise is not the invention of West and capitalistic 
West.
>
>The other factors are, in my own opinion, not too bad for mainland
>people to understand. True, HK people hold a different attitute to
>mainland people, but when comes to certain topics such as the
>history, this is the fact, so no argument is necessary. But
>for the point Jian Chen mentioned that British cannot get any
>credit for HK's great economy, I have something to say.
>Is it easy to imagine that HK will not achieve today's economic
>success without British. True, British government had badly taken
>HK over, but because of the way British govern (I mean the way
>western people govern, not only the British government), HK
>had achieve its economic success nowadays. What will happen if
>there is no economically successful Hong Kong, will the China
>government open his mind to allow foreign investment and open
>special economic areas so soon?
>A
>A


Newsgroups: soc.culture.china,soc.culture.korean