Otaku Engineer in Great Tang Dynasty

Imperial College of Supreme Learning, in the Computational Science Pavilion.

Everyone focused on Ke Shiqing and waited for him to ask questions.

“Students want to ask Mr. to calculate a question within a quarter of an hour. The title is 1,300 52 by 2,778. What is the result?”

Ke Shiqing thought about it and gave a huge number of multiplication questions.

"Hey~, such a big number, it’s estimated to be a day with the calculations?"

"Who said no, this Ke Shiqing is too embarrassing."

............

As early as the pre-Qin period, people learned to count and multiply calculations by calculating the number, first swing the multiplier on the top, then put the multiplier on the bottom, and align the last digit of the upper digit with the first digit of the lower digit, press left. The order to the right is multiplied by the first digit of the upper digit, and the multiplied product is placed in the middle of the upper and lower digits, then the first digit of the upper digit is removed, the lower digit is shifted to the right by one digit, and the second digit is multiplied by the second digit. Ladies and gentlemen, add the middle product and remove the second digit. Until the last few people run out, the middle number is the result.

Ke Shiqing This question, if you use calculations to calculate, maybe you really have to play with one day.

Kong Yingda and Xu Hongzhi listened to the questions and they all looked dignified and locked their brows.

Li Zexuan smiled easily and didn't care: "hehe, how difficult is this, Ke Shiqing, you don't need me to do this, my eldest disciple can do it all, Tiedan, you come up and solve this problem on the blackboard!"

This is the two four-digit multiplication. With Li Zexuan's powerful mentality now, you don't have to do it. You can directly answer the answer in your mind. It's too challenging. Let Tiedan practice your hand.

"Yes, Master!"

Tiedan walked from the seat to the blackboard, picked up a piece of chalk, and used Li Zexuan's elementary mathematics knowledge to begin his calculations.

He and Lan'er found the novelty of blackboard chalk last night, but graffitied it for a long time, so it is not difficult for him to write on the blackboard now.

"Hey~ I didn't get it wrong? Does the gentleman still say that this question is simple?"

"Can his discipline really do it?"

"Too mad!"

Ke Shiqing is also frowned, secretly thought. This new gentleman is really a big tone. At the moment, he stopped talking and concentrated on Tiedan to solve the problem. It was only this look that he was forced.

What is this black wooden board? Why can I write on it? Why is the writing still so clear? Can be seen from this far.

Also, what is the name of Tiedan? How does it look like a ghost character?

The rest of the people also found that something was wrong, and they whispered and whispered.

"This black board is so magical that it can be used for writing. So, if Mr. lectures in the future, can we listen and watch, and it is more convenient to take notes!"

"Yeah, the former gentleman talked too fast, I can't remember it. If I have this thing, I can definitely learn better. I hope that Mr. can beat Ke Shiqing so that the gentleman does not have to leave."

"Hey, look at what the little child wrote? Why don't I know?"

"I don't know the amount, how can it look like a ghost!"

..........

Kong Yingda saw Tiedan writing and drawing on the blackboard, and instantly understood what Li Zexuan had said before the schoolhouse to let students know the results for half the effort. He taught me for many years. The book, so he saw at a glance that this blackboard taught more than he had told the book above, the effect is not many times better.

Kong Yingda is extremely excited, secretly thought, such a good thing, Imperial College of Supreme Learning must be equipped with a set of all the churches, and I have to ask Li Zexuan for a batch.

When he looked at the words written by Tiedan, he couldn't help but frown, thinking: Is Li Zexuan the master, haven't you taught this child before? How to write the twisted, can not recognize it!

Xu Hongzhi saw this word last time, but his heart was still shocked at the moment. He did not expect Li Zexuan to have the confidence to calculate such a huge multiplication problem with his strange words.

Time passed by, almost less than half a quarter of an hour, almost the same as the modern four or five minutes, Tiedan left seven lines of Arabic numerals on the blackboard, has calculated the results, he still has some peace of mind, I re-examined it again and found that the results were the same twice. Then I turned and said to Li Zexuan:

"Master, Tiedan figured it out, the answer is three hundred 70 59,912."

After listening to Li Zexuan, he was slightly nodded, and he calculated it in his heart. This is indeed the answer.

"Hey..."

The sound of a swallowing water, even though they still don't know the result is right, but the huge number of light scares them. They really don't understand such a big number. How did Tiedan calculate it in such a short time? of.

"Well, Tiedan, sit back first! Ke Shiqing, how, is this answer incorrect?"

Li Zexuan laughed, looked towards Ke Shiqing.

Ke Shiqing has been shocked since listening to Tiedan's answer and can't believe it. When Li Zexuan asked him, he was sober, and he took a deep look at Li Zexuan and said:

"Return to Mr., the answer to this question is indeed this, but the students really don't understand why I have calculated the question before a day, Tiedan can calculate it in half an hour. Ask Mr. to pass me this efficient algorithm. , students are willing to pay any price!"

Ke Shiqing just finished, the blasted the pot under the hall.

“hiss~ is quite right!”

"It's incredible. With such a huge number multiplied, it can be calculated in less than half a quarter of an hour. Is our new gentleman a reincarnation of Daoist Immortal? How is the discipline of teaching so powerful!"

"It must be the reincarnation of Daoist Immortal. It's great. I can attend classes under the gentleman's hall in the future, and I can learn this magical algorithm!"

"If I can learn this algorithm, I will definitely be able to enter the four schools next year!"

“The Senior Brother of the four schools is not so powerful!”

.........

Both Kong Yingda and Xu Hongzhi were stared wide-eyed and almost pulled the beard down.

Li Zexuan pressed his hands toward Void at the bottom, and everyone stood quietly, and they all turned their eyes to him.

"Shi Qing, have you seen these seven lines on the blackboard? This grotesque little word is a simpler counting method for my invention. As for the calculation process, it is very simple, and will be explained to you in the future. Now, who else do you have to ask questions? It’s time to ask questions!”

Li Zexuan took a branch, which he had just folded before the Imperial College of Supreme Learning. He explained the trace of Ke Shiqing with the branches pointing to the traces left by Tiedan on the blackboard.

The Arabic numerals were originally invented by the ancient Indians. Later, after 700 AD, the Arabs conquered the Punjab region and arrested a mathematician from northern India. The Indian counting methods and mathematical symbols were learned by the Arabs. It was transmitted to Europe and later modernized by Europeans.

At this time of the Zhenguan period, the entire World has no Arabic numerals, and Li Zexuan later thought of such a glimpse, so it is not wrong for him to describe this thing as his own invention at the moment.

Ke Shiqing heard that he could have the opportunity to learn this profound algorithm with Li Zexuan in the future. He was very excited. He gave a respectful ceremony to Li Zexuan and said, “Mister Xie has enlightened me, the students have no doubt, sir. Another way to make a difference, in the field of Computational Science, students are far behind!"

Kong Yingda and Xu Hongzhi can all see a horror from the other side's eyes. It is easy to say, but to construct a complete and rigorous system of doctrines.

Through the ages, the ability to create a self-contained family, is not a celebrity Great Grandmaster, or even a Great Sage! For example, Confucius, Laozi and the others. Li Zexuan This self-made doctrine, if he can stand the test, I am afraid he will become a saint in the future!

Is this the period of prosperity, is the saint out?

Li Zexuan was somewhat complimented by Ke Shiqing. He waved his hand with a smile: "Well, everyone has questions as soon as possible, no problem, then I will start the class officially!"

The rest of the students are look at each other in dismay, Li Zexuan's discipline is so powerful, and they dare to go out and look for abuse! So, Li Zexuan waited for a long time and no one asked to ask questions. He was preparing to start the formal class, and he heard a loud voice coming from outside the house.

“haha, there is a question for this king, and please ask Court Academecian Li!”

...............