(short story 1)

The physics professor walked across the campus and met the math professor.

The physics professor is conducting an experiment. He summed up an empirical equation, which seems to be consistent with the experimental data. male

Ask the math professor to look at this equation.

A week later, they met, and the math professor said the equation was invalid. But by then, the physics professor had used his method.

Cheng predicted the further experimental results, and the results were quite good, so let the math professor review them again.

This equation.

Another week later, they met again. The math professor told the physics professor that the equation was correct.

"But it only applies to the simple case of positive real numbers."

(Short Story 2)

Engineers, physicists and mathematicians received a task at the same time: nailing the wall.

The engineer has built a universal nailing machine, which can drive any possible nail into any possible wall.

The machine in the room.

Physicists made a series of tests on the strength of hammers, nails and walls, and then developed a revolution.

Ultra-low temperature ultrasonic nailing technology.

Mathematicians extend the problem to N-dimensional space, and consider that a kinked 1 dimensional nail penetrates an N- 1 dimensional super wall.

Many basic theorems have been proved ... Of course, the abstinence of this topic makes a simple solution exist.

Sex is far from obvious.

(Short Story 3)

A farmer invited engineers, physicists and mathematicians to enclose the largest area with the least fences.

The engineer fenced a circle and declared that it was the best design.

Physicists pull the fence into a long straight line, and the length of the fake purlin is limited.

I think it is big enough to surround half the earth.

The mathematician gave them a big laugh.

He surrounded himself with several fences and said:

"I'm outside now."

(Story 4)

Physicists and engineers got lost in a hot air balloon in the Grand Canyon. They shouted for help: "Hello!

——! Where are we? "

After about 15 minutes, they heard the response echoing in the valley: "Hey! You are in a hot air balloon! "

The physicist said, "That guy must be a mathematician."

The engineer wants to know, "Why?"

The physicist said, "Because it took him a long time to give a completely correct answer, but the answer is one."

It's no use. "

(Short Story 5)

Constant function and exponential function e's x power are walking down the street, and when they see the differential operator far away, the constant function is scared to hide.

Zang said, "I don't have anything to distinguish it from!"

Exponential function said unhurriedly, "It can't do anything to me, I am the x power of E!" " "

Exponential function meets differential operator. Exponential function introduces itself: "Hello, I am the x power of E."

The differential operator said, "Hello, I'm d/dy!"

(Short Story 6)

Physicists, astronomers and mathematicians were walking on the Scottish Plateau when they happened to see a black sheep.

"Ah," said the astronomer, "so Scottish sheep are black."

"Come on, you can't say that based on one observation," said the physicist. "You can only say one.

Black sheep were found in Scotland. "

"No," said the mathematician, "from this observation, you can only say: at this moment, this sheep, from

From our point of view, one surface is black. "

(Short Story 7)

One day, the mathematician felt that he had had enough of mathematics and ran to the fire brigade to announce that he wanted to be a fireman.

The fire chief said, "You look good, but I have to give you a test first."

The fire chief took the mathematician to the back alley of the fire brigade. There is a warehouse, a fire hydrant and a paper in the alley.

Hose. The fire chief asked, "Suppose the warehouse was on fire, what would you do?" The mathematician replied, "I'll cancel it."

Connect the bolt to the hose, open the hose and put out the fire. "

The fire chief said, "Exactly! Last question: suppose you walk into an alley and the warehouse is not on fire.

What would you do? The mathematician puzzled for a long time and finally replied, "I just need to set fire to the warehouse." "disappear

The defense team leader shouted: "What? That's terrible! Why did you set fire to the warehouse? " Mathematicians answer:

"In this way, I will simplify the problem into a problem that I have solved."