Ye Feng passed the test with a confused face, although everyone said that no one came out right, but this feeling was quite weird!

Something is wrong!

However, no one paid attention to Ye Feng.

Over there, Principal Wu spoke again, "This first level Professor Ye is over, and this second level is not so simple, come, from the Department of Mathematics." Principal Wu waved his hand.

Dean Ma Lang of the Department of Mathematics stepped forward and said with a smile: "Professor Ye, this second level is a matter of our Department of Mathematics, I will give you a preventive shot first, our question is not as bells and whistles as the Department of Literature." This question is really difficult, if you can't study it before the auspicious time, send us a few red envelopes and we can let you pass. ”

Dean Ma's words are clear, originally the first level of Zhao Huangming and they also mean this, no one really wants to embarrass Ye Feng, they just want to be happy, just ask for a few red envelopes, just ask for a lottery. However, who would have thought that Ye Feng would have a link in the first level, and Zhao Huangming and they would let Ye Feng pass the test in a daze. Of course, no one has discovered the mystery of this link until now.

With this experience, Dean Ma said this as soon as he came up.

The guests were smiling.

Everyone understands that this is a fun show.

However, Ye Feng's temperament is still a master who does not admit defeat, this product is usually a thief, and he wants him to be soft when he gets married today?

That's almost impossible!

In the last level, you fooled me in a daze, and you still want to fool me in this level?

Inexistent!

Ye Feng rolled up his sleeves, "Come on, let the horse come, I'm not afraid of mathematics yet!"

"Gotcha. ”

Dean Ma smiled maliciously, "This is what you said, then I will solve the problem?"

Ye Feng smiled confidently, "Come, I'll continue." ”

Dean Ma smiled and said, "This second level, our mathematics department has a problem. Ma Lan stretched out his hand and gestured, and said, "May I ask Professor Ye, what is the sum of all natural numbers?"

After Dean Ma finished speaking, the guests present were all confused.

The sum of all natural numbers?

What the hell is this question?

Even if you are not engaged in mathematics, even Mr. Song Qingxuan, who is engaged in calligraphy, knows that there are infinite numbers of nature, how can this thing be summed?

There can be no harmony!

Many people are already confused when they hear this question.

Only a few old mathematics professors from Tsinghua University and Peking University were slightly stunned.

Dean Ma saw the strengths and explained with a smile: "This question is actually very easy to understand, natural numbers, that is, 0, 1, 2, 3, 4...... How much do you add them up and wait?

Director Jin of the Physical Education Department next to him smiled bitterly and said, "Dean Ma, you really don't want Professor Ye to pass the test." ”

Dean Hu of the Chinese Department of Peking University shook his head and said, "This is clearly asking Professor Ye to take out the red envelope, this thing can't be counted!"

Zhao Huangming raised his thumbs up to the people in the mathematics department, "You still know how to play, I'm convinced!"

Seeing that everyone said this, Dean Ma got cheap and said obediently: "Professor Ye is the person who has solved the world's top ten mathematical conjectures, this problem may be clueless to others, but it is not difficult for Professor Ye, right?

"Ha, you seem to have some truth in saying that. ”

"I'm a math student. ”

"Not only has he not solved this problem, but he has no meaning!"

"That's right, even if you figure this thing out, what can you do?"

"yes, the sum of all the natural numbers?

"Forget it, Professor Ye, you better just give the red envelope. ”

"There's no way this thing can be calculated!"

Many people have begun to persuade Ye Feng, this problem is obviously not to let Ye Feng pass!

The sum of all natural numbers?

It's not a joke, is it?

Even the media outside smiled wryly.

They have seen a lot of people who make it difficult for the groom to get married, some of them pour wine, like the first level, and some let them gnaw apples, and some of them hide the bride's shoes, all of them. However, it is the first time they have seen Professor Ye who has been troubled by such fancy and professional high-level problems!

On the side of the rostrum, the two hosts were mobilizing the atmosphere of the scene.

The hostess took the microphone and said with a smile: "Professor Ye successfully passed the first level, but now the situation in the second level is not very optimistic, can Professor Ye still pass it smoothly?"

Male host: "I see it hanging, I guess Professor Ye is going to take out a red envelope." ”

"Alas, Professor Wang, you are an expert in this field, help Professor Ye think about it. ”

"Yes, Lao Li, hurry up and help Professor Ye do the math. ”

"That's a boring question, what's the matter?"

"Seriously, this question has been calculated for a long time, but in the end the numbers are too big. ”

"This must be a big number, too big an estimate!"

"Don't say it's the addition of all natural theories, it's the addition of infinite 1s, the addition of infinite 100s, it's all the same, and the result is infinite!"

Many people shouted and called for the help of the mathematics professors on the scene, but so many experts and professors engaged in mathematics at the scene, including Peking University, Tsinghua University, and even old professors of the Chinese Academy of Sciences, all shook their heads at this problem without exception.

In the face of this perverted and boring meaningless problem, everyone is really powerless, who can calculate the sum of these infinite and infinite numbers?

This is obviously an infinite progression!

And it's an infinite series of divergence!

As we all know, there is no point in diverging!

Don't say it's the sum of all natural numbers, let's just say what the last natural number is, everyone doesn't know, how can this be calculated?

It's impossible to calculate!

Looking at them, Dean Ma and the people from the Department of Mathematics of Haida behind them all smiled.

This problem was not come up with by them, this problem was probably studied in the Western mathematical community around the seventeenth and eighteenth centuries, but those mathematicians in this world found that this thing really has no meaning, and what can it be like if it is finally studied?

It's useless!

So, in the end, there are no mathematicians to calculate this thing.

This problem has been abandoned in the mathematical world for hundreds of years, but I didn't expect it to be taken out by Ma Chao today to make things difficult for Ye Feng.

However, at this time, Ye Feng, who had been raising his eyebrows and pondering, suddenly smiled, looked at them and said with a smile: "That's it?"

Ma was stunned, "Huh?"

A mathematics professor at Peking University over there was also stunned, "What do you mean?"

Ye Feng chuckled, "Are you sure it's this?"

Dean Ma: "Sure, that's it, you can do it!"

The reason why this question is not included in the top ten conjectures is because mathematicians feel that this thing has no meaning, but in fact, the difficulty of this problem is not lower than the ten conjectures, and ordinary mathematicians will be discouraged when they see this problem, so seeing Ye Feng's relaxed expression, Dean Ma's heart is a little drummed, Professor Ye will not really be able to calculate it, right? After all, he is the man who has solved Goldbach's conjecture!

Dean Ma emphasized: "Professor Ye, you can't just say a number to fool us. ”

Ye Feng sighed lightly.

Dean Ma said, "You have to write out the steps." ”

Ye Feng didn't care about it again.

Dean Ma swallowed, "Then you can count it." ”