Variety show: The school's male gods, and the days when they were classmates with female stars

Does Shen know that Gao Shu is so good?

Cheng Xiao scratched his head, "How do you calculate the second question..."

Cheng Xiao, who couldn't even understand the question, looked at Bingbing for help.

Bingbing shook her head helplessly, "I didn't learn advanced mathematics when I was in school, so I can't either."

The classroom is chaotic.

The students were surprised and shocked.

Even Jiang Zhiming needed to write down the calculation process when he calculated these two problems.

But Shen Zhi figured it out with his mind? !

...seeking flowers 0?...

Although the teacher was a little shocked in his heart.

But after all, it has been in business for decades.

What students have not seen.

But Shen Zhi was indeed a bit unexpected.

Soon the teacher regained his composure.

He adjusted his glasses and asked, "Student Shen Zhi, how did you calculate it? Can you tell us about it?"

"It's very simple..." Shen Zhi nodded, and continued, "Look at the first question first..."

"e(x)=l"

eeA(-2x)= J (0?infinity)eA(-2x)eA(-x)dx=-eA(-3x)/3|(0-infinity) = 1/3

“所以，1十1/3=4/3”

"The second question is probability theory, from the meaning of the question: x~p (2) , e (0.25)."

0 ........

"then d (x) =2, d (y) =0.25o"

"Then the square of d (2x-3y-2) two 2 d (x) two (-1) square d (y) =O"

The students nodded.

That's right!

That's how it works!

but……

How did Shen know that he could calculate this result with just his brain!

These two questions require a set of formulas to be calculated.

Everyone of them has to use their pens to calculate!

Jiang Zhiming standing on the podium was a little embarrassed.

The teacher hasn't let him go down yet.

Didn't even look at his results.

He kept staring at Shen Zhi the whole time.

Jiang Zhiming wanted to leave, but at this moment everyone's attention was on Shen Zhi.

No one paid him any attention.

The teacher looked at Shen Zhi thoughtfully, "It seems that you are very good at mental arithmetic."

"It's okay." Shen Zhi said.

The teacher squinted his eyes at Shen Zhi.

It is true that the numbers for these two questions are not large.

But it is not easy to calculate.

After all, numbers are trivial matters, and formulas are required to calculate them.Seeing Shen Zhixin figure out two problems, the teacher suddenly became interested.

"Then let me try a speed calculation problem for you?"

Shen Zhi nodded, "Please."

The teacher picked up the pen and wrote on the blackboard.

"!"

see this thread.

The students at the scene gasped.

Do you need to do mental math on this question? !three.

Chapter 1 Shen Zhi has a calculator in his head, right?

?!

The students looked at the teacher in shock.

Is this serious? !

This is five digits multiplied by five digits!

This kind of question is difficult for ordinary people.

You must use a calculator.

But for math majors, it's relatively easy.

Because there is a way to split it.

There is a formula.

However, this kind of five-digit quick calculation is a difficult topic for such numbers.

Even ordinary mathematicians need a certain amount of time to answer.

Possibly still counting!

The teacher let Shen Zhi do the math? !

What a joke!

The teacher looked at him with a smile.

I don't think Shen Zhi can figure it out in his head at all.

Although the mental calculation of the two questions just now is very powerful.

But this quick calculation problem is different from the previous two.

The number of quick calculation questions is very large, and the formula "[-]" is complicated.

Some students have already picked up their mobile phones.

Before they start counting.

Shen Zhi said slowly, "". "

classmates:"? ? ? "

teacher:"? ? ? "

Stars: "????"

At this time, the barrage area:

"Has anyone figured it out?"

"Is this really the number?"

"Really, Shen Zhi is right."

"Fuck! Is this really calculated by the human brain?!"

"Damn it! How did Shen Zhi figure it out so quickly?"

"If I hadn't watched the live broadcast, I would have thought I used a calculator, but Shen Zhi never did it!"

"Could it be that Cheng Xiao who was sitting next to Shen Zhi told him?"

"No way, Cheng Xiao didn't react yet, Shen Zhi just said the answer?"

Hear Shen Zhi's answer.

At this time, all the students took out their mobile phones one after another.

After all, it is five digits multiplied by five digits.

In the end, the number of results is so large that the calculator on the mobile phone cannot display all of them.

It can only be calculated by the calculator in the browser.

See the final result.

In an instant, everyone gasped.

"That's right! Yes

"That's ten digits!"

"It's really a mental calculation!"

The teacher looked at Shen Zhi in shock.

Don't look at this problem as a simple quick calculation problem, but it is a five-digit multiplication

This kind of number is difficult to split, and the amount of calculation is also very large!

He kept staring at Shen Zhi the whole time.

Shen Zhi kept pounding his hands on both sides of his body, looking forward.

There are no extra actions.

It was calculated purely!

but……

This Nima is too fast!

As soon as the students picked up their mobile phones, Shen knew that the result would come out? !

It took only a few seconds for him to say the answer after writing this question!

Even for him who is very interested in mathematics, this kind of quick calculation problem can indeed be calculated without hands, but the answer can be calculated in a few seconds?

That's obviously impossible!

Unless it is a top mathematician or mental arithmetic master in China!

The stars looked at Shen Zhi in a daze.

They know that Shen Zhiwen is good at science.

But I didn't expect that Shen Zhi was even better at science? !

First mentally calculate two math problems, and then mentally calculate this huge five-digit multiplication? !

The time to calculate the results of the three questions is probably only a dozen seconds!

At this time, on Weibo and on the news.

Such a topic arose.

[Shen Zhixin calculated the multiplication of two five-digit numbers! 】

Under this topic, put a video.

The video is only a few seconds long.