Li Shimin waited for a long time, and finally waited for the guard to enter the hall, and then heard an incredible news.

Xu Jingzong, who was appointed by himself to work under Cheng Sanlang after being summoned by himself to the palace before the monarchs and ministers.

Just two days ago, after being involved in a car accident, I became a disabled person with a half leg.

"Because Xiao Cheng Taibao had explained before that he had just finished the operation, and he was not allowed to move the injured at will."

"I can't find Xiao Cheng Taibao, so I can only report back first."

"..." Li Shimin stared blankly at the Ouchi guard who rushed back out of breath to report. Cheng Chubi took the manuscript of their problem-solving handed over by Hu Yonglin, compared it with the problem, and praised. .

"No, it's not bad. After all, the two teachers are not very skilled in the application of these numbers and formulas..."

"As for this problem you encountered, what do you think?"

Zu Guang considered the words and explained. "Zu always felt that this topic was too esoteric.

Zu has never considered that throwing a stone can actually be calculated..."

Zhang Wenchang on the side couldn't help but interject. "Zhang self-confessed that his talents were ignorant, and he had been thinking hard for a while, and felt that this problem was simply impossible to solve."

Cheng Chubi looked at the three in front of him and clapped the book on his hand with a smile.

"Actually, this question is a bit out of scope for several of you. To be precise, this is not a math question, but a physics question."

"Physics?"

"Precisely, the so-called physics is a discipline that studies the general laws of the motion of matter and the basic structure of matter.

The most basic forms and laws of motion of all matter, ranging from the universe to the smallest, such as elementary particles. "

"And its theoretical structure, mainly, is the full use of mathematics as its working language."

Cheng Chubi sat down, picked up a piece of paper and a quill, and began to list the parametric equations according to the question...

Everyone looked at him blankly, watching him explain the function of those parametric equations.

And flight time calculation formula, range calculation formula, launch angle calculation formula...

And it also draws a two-dimensional curve of the stone trajectory...

In short, everyone was suffocated in the ocean of physics and suffocated.

And Cheng Chubi also picked up the abacus, twitched the abacus flexibly with his fingers, and slapped the abacus, and finally wrote down the result.

#####

After Fang Jun was stunned for a long time, he was the first to ask the question in his heart.

"Brother Chubi, what's the use of calculating this physics problem?"

Cheng Chubi lightly poked his finger and explained the result he got after checking.

"Could it be that my virtuous brother forgot that in my Tang Dynasty's armament, the crossbow, ballista, and bow and arrow can all be calculated according to these formulas."

"In this way, if I, Great Tang, want to develop better, more powerful, and more efficient long-range weapons.

You can also make it through repeated research like this first…”

"From the point of view of physics, let us understand that the treatment of things must be objective and fair, and that any conclusion has its conditions and scope of use..."

Zu Guang, Zhang Wenchang, and Hu Yonglin stared blankly at Cheng Chubi who was talking.

More and more, they felt that the knowledge they had learned was a little too shallow compared to Cheng Chubi.

After a long time, Zu Guang exhaled a turbid breath, and bowed respectfully towards Cheng Chubi, holding the crown on his head.

"Many thanks to the principal for clarifying our doubts. After listening to the principal's words, Zu came to understand what physics is. For a physicist, everything has a reason..."

"I don't know, I don't know if the principal will open this department in the university, or Zu, hehe..."

Look at this math master who is chomping on words in front of him and is full of desire for physics.

Zhang Wenchang and Hu Yonglin also looked at Cheng Chubi eagerly, as if they were afraid that he would refuse.

"If a few of you are willing to study physics, it's quite simple. When I have time, I will compile some physics stuff to study with you."

"If there is an opportunity in the future, I may have to trouble you all to teach and teach the students, so that more people can understand physics."

The three of them couldn't help being overjoyed, and bowed to Cheng Chubi again, and Cheng Chubi hurriedly returned the bow.

Next, they curiously asked about the abacus that Cheng Chubi gave them, with the guidance of Cheng Chubi, a master of practical operation.

Coupled with their ingenuity, they quickly understood the magic of this abacus.

In particular, these three mathematicians were so excited that they didn't know what to do.

"Thinking that Zu has studied calculation since he was a child, and it has been more than 20 years since he was a child. He has always felt that calculation is too cumbersome, but there is no more convenient means."

"Principal Cheng, your research and development of this thing is simply a sharp weapon for me to use in mathematics, baby."

Zhang Wenchang's eyes were a little green, and he could not wait to reach out and grab a good treasure. It's a pity that everyone is a gentleman, and they are embarrassed to start.

Zhang Wenchang could only look at Cheng Chubi and squeeze out a pleasing smile.

"Principal Cheng, I wonder if Zhang can replicate a weapon like this?"

"It turns out that Teacher Zhang is also a mathematician. This is really a negligence by Cheng."

"I have already prepared it for the students of our school's mathematics department. If there is any extra, I will ask someone to give it to Teacher Zhang as well."

#####

After the three math masters left, Li Ke approached Cheng Chubi with a face full of resentment.

"Brother Chubi, since you have such a good treasure that is good for math, why don't you let your little brother know?"

"You didn't ask." Cheng Chubi rolled his eyes at the guy unwillingly.

The abacus was invented by Cheng Chubi long ago, and this is what the old Cheng's accountant used.

Now, considering that our own university wants to engage in mathematics, physics and chemistry, UU reading www.uukanshu.com naturally cannot lack computing tools.

Cheng Chubi has only made dozens of them, and they will be promoted among students at that time. The reason why they brought them today is to show off.

The purpose is to let these teachers learn first, and then teach students.

"Then I'll have one too, my little brother will definitely be happy to use this thing in my house."

"And me, I want too." Although Fang Jun was not as obsessed as Li Ke, he was not stupid at all, and immediately shouted loudly.

This time, Cheng Chubi and Li Ke both turned their attention to Fang Jun.

"I said Brother Jun, what do you want this thing to do?"

Being stared at by these two guys made Fang Jun a little stressed and scratched his head, but Fang Jun still told the truth.

"I used it to learn, so I can teach my father."