C*****8
发帖数: 1139 | 1 【 以下文字转载自 Joke 讨论区 】
发信人: coalpilerd (coal pile), 信区: Joke
标 题: Re: 富士康技工面试:文化成绩太好了被淘汰 (转载)
发信站: BBS 未名空间站 (Tue Aug 14 19:32:03 2012, 美东)
我天朝正在向美帝靠拢啊~~~
以前在某教授的办公室门口看到的笑话——
The Professor and the Plumber
One professor of mathematics noticed that his kitchen sink at his home
broke down. He called a plumber. The plumber came on the next day, sealed a
few screws and everything was working as before. The professor was delighted
. However, when the plumber gave him the bill a minute later, he was shocked.
"This is one third of my monthly salary!" he yelled. Well, all the same
he paid it and then the plumber said to him: "I understand your position as
a professor. Why don't you come to our company and apply for a plumber
position? You will earn three times as much as a professor. But remember,
when you apply, tell them that you completed only seven elementary classes.
They don't like educated people."
So it happened. The professor got a plumber job and his life
significantly improved. He just had to seal a screw or two occasionally, and
his salary went up significantly.
One day, the board of the plumbing company decided that every plumber
has to go to evening classes to complete the eight grade. So, our professor
had to go there too. It just happened that the first class was math. The
evening teacher, to check students' knowledge, asked for a formula for the
area of the circle. The person asked was the professor.
He jumped to the board, and then he realized that he had forgotten the
formula. He started to reason it, he filled the white board with integrals,
differentials and other advanced formulas to conclude the result he forgot.
As a result he got "minus pi times r square".
He didn't like the minus, so he started all over again. He got the minus
again. No matter how many times he tried, he always got a minus.
He was frustrated. He looked a bit scared at the class and saw all the
plumbers whisper:
"Switch the limits of the integral!!" | c******n
发帖数: 380 | | h********0
发帖数: 12056 | 3 all the plumbers there are also math professors or something
【在 c******n 的大作中提到】
: 最后没看懂，谁能给解释一下？
| f**********d
发帖数: 4960 | 4 圆面积用极坐标积分不是一下子就出来了么，会写一黑板？
a
delighted
【在 C*****8 的大作中提到】
: 【 以下文字转载自 Joke 讨论区 】
: 发信人: coalpilerd (coal pile), 信区: Joke
: 标 题: Re: 富士康技工面试:文化成绩太好了被淘汰 (转载)
: 发信站: BBS 未名空间站 (Tue Aug 14 19:32:03 2012, 美东)
: 我天朝正在向美帝靠拢啊~~~
: 以前在某教授的办公室门口看到的笑话——
: The Professor and the Plumber
:
:
: One professor of mathematics noticed that his kitchen sink at his home
| d*****u
发帖数: 17243 | 5 那极坐标的积分上下限又是怎么推出来的呢？
【在 f**********d 的大作中提到】
: 圆面积用极坐标积分不是一下子就出来了么，会写一黑板？
:
: a
: delighted
| f**********d
发帖数: 4960 | 6 0-r;0-2pi;
【在 d*****u 的大作中提到】
: 那极坐标的积分上下限又是怎么推出来的呢？
| d*****u
发帖数: 17243 | 7 我问的是“怎么推出来”
其实你已经假设了一个圆周长度为2pi*r
到这一步，不管什么积分都很简单了
【在 f**********d 的大作中提到】
: 0-r;0-2pi;
| f**********d
发帖数: 4960 | 8 由圆的定义推出来的啊，平面上到某点距离相等的点集。
【在 d*****u 的大作中提到】
: 我问的是“怎么推出来”
: 其实你已经假设了一个圆周长度为2pi*r
: 到这一步，不管什么积分都很简单了
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