When the two discussed, they had already made a conclusion and began to verify the results.

Jiang Wangfeng and the more than 20 people who came with them came to a total of three conclusions, each of which had its own supporters.

The three conclusions are all visually obtained, in fact, they are very similar, only the last mantissa is slightly different.

This is the only difference in such large numbers, which proves that their judgments are actually very close.

Each of them elects one person to measure the archway, and the others supervise the results of the measurement calculations.

A group of people laughed and took out their tools and began to work, Xu Wen and Lin Xie stood aside and watched.

When they come out to play, of course they don't bring all their tools, they only have some simple tape measures and ropes and things like that.

With such a little tool, the height of this archway can be accurately measured?

Lin Xie was puzzled and curious, and subconsciously took a step over there.

Xu Wen glanced at him, followed beside him, and did not interfere.

The first thing to be measured is, of course, the length of the shadow of the archway.

Although the sun was bleak today, it was a sunny day, and the archway dragged a long shadow on the ground, until it reached the edge of the woods before barely stopping.

Jiang Wangfeng and the others measured the total length of the shadow one after another, and one person used a tree branch to write it down on the ground—of course, using what they had been learning every day recently.

Lin Xie glanced over there curiously, squinted his eyes and asked, "Hu Shu?"

"You know?" Xu asked, with some surprise.

"Yun Niang sent someone to teach me. Lin Xie said.

Yun Niang, who gave him the name Lin Xie, sounds like one of his elders, will he still teach this......

"Hu Shu is simpler to write than Han Shu, and it is easier to calculate. She said she wanted to give it a try......"

Lin Xie's words came to an abrupt end in the middle of speaking, Xu Wen didn't pay attention, and asked casually, "What to try?"

“...... I can't say. Lin Xie said apologetically.

"Can't you say?" Xu Wen thought about it confusedly, he didn't think there was anything to avoid in the conversation just now, at most it was Yun Niang's plan......

What can't be said about this?

"And how are you learning?" he thought for a moment, then simply changed the subject.

"Not good...... It's not a useful truth, so what's the use of learning it? It's not interesting. Lin Xie said.

"You don't like this?" asked Xu Wen.

"Not much interest. Lin Xie honestly admitted. His expression was a little sneering, obviously because of this had some unhappy past.

Xu Wen was about to speak, when he looked up and saw a few people walking out of the opposite side of the archway. They saw Lin Xie first and were about to go this way, but they only took two steps before they noticed Jiang Wangfeng and them.

One of them raised his hand, and several of them stopped together and looked over there.

After measuring the shadow, they took out a rod and began to measure the ratio of the rod to the shadow.

The normal measurement ends here, and the height of the archway can be obtained by multiplying and dividing in equal proportions.

However, this alone is not precise enough, and the discrepancies are similar to the fluctuations of the three groups, and it is certainly impossible to distinguish the winner from the loser.

So Jiang Wangfeng and the others did not stop, but continued to measure, calculating various data such as the angle of the sun's shadow.

They played with the joy, writing more and more numbers on the clay floor, and all kinds of Arabic numerals and symbols intersected, with a sense of regularity in complexity.

The people who had just arrived were basically incomprehensible, and one of them tilted his head sideways and kept explaining.

With the sound of this chattering explanation, these young people finally came to the answer.

Jiang Wangfeng rarely lost, and the number he visually measured was half an inch more.

He was right, but he missed a protruding horn from the eaves beast......

That corner is affected by the light, and it is a little inconspicuous from a distance, but it is clearly expressed in the shadow.

When Jiang Wangfeng saw the corner on the shadow, he knew that he had lost, and waved his fist in annoyance.

In contrast, it was the other two groups that fought for it.

The argument is purely mathematical, and there is a conflict over how to calculate a certain angle and length.

Actually, it's still a very simple math problem, but these people are beginners after all, and it's normal to be confused and discussed.

The young man was in high spirits, and a little bit like no one else, and they discussed it so intensely that they completely forgot what the occasion was and who was watching.

"Glad little brothers. "As soon as they came to their conclusions, a voice came from the side, gentle and very friendly.

Xu Wen looked up, and the first person he saw was Yan Jiangguan. He stood to the right of the man who spoke, with an approving smile on his face, vaguely smug.

The man who spoke was a middle-aged man, in his forties, dressed as a scribe, mild-mannered with a hint of sharpness.

The social class was completely different, and the young craftsmen were a little nervous when they saw him, except for Xu Wen, who was standing on the side, only Jiang Wangfeng arched his hand without humility or arrogance, and said, "I've seen Mr." ”

"I just took the liberty to listen to it on the side, have the little brothers learned to calculate?" the middle-aged man asked.

"Yes, it's only been a long time. Jiang Wangfeng glanced at Yan Jiangguan and replied calmly.

"How long?" the middle-aged man asked.

"I learned it at home before, and their words ......" Jiang Wangfeng glanced at Tian Jifeng next to him, who had already calmed down, and replied, "It's been exactly ten days until today." ”

"Ten days ......" the middle-aged man pondered for a moment and asked, "I have a few questions here, but I haven't come up with an answer yet, I wonder if you can please help me calculate them." As he spoke, he pulled out a purse and said, "In return, I am willing to pay some money." ”

Jiang Wangfeng didn't agree immediately, but turned his head and glanced at Xu Wen.

The middle-aged man sensitively noticed it, and then turned his head, just in time to see Xu Wen nodding.

"Well, thank you sir for giving us this opportunity. Jiang Wangfeng readily agreed, and the expressions of those people behind him were also a little hesitant, and they all relaxed in an instant, waiting for the middle-aged man to come up with the question.

The middle-aged man was stunned for a moment, but didn't ask much, just kept the matter in his heart.

"There are pheasants and rabbits in the same cage today, with thirty-five heads on the top and ninety-four feet on the bottom, ask the pheasants and rabbits how much they are?" the middle-aged man pondered for a moment and came up with the first question.

"Hahahaha!" Hearing this question, the people behind Jiang Wangfeng laughed.

The middle-aged man was a little confused by laughter, and subconsciously looked at Yan Jiangguan, thinking that he had said something wrong.

As a result, Yan Jiangguan also smiled and shook his head slightly.

"I'll do it for you. Jiang Wangfeng pointed at Tian Jifeng and said. Just now I visually measured the height of the archway, and the person who calculated it correctly was him.

"I won't do it! Don't think I don't know your mind, if this question is done, I won't have my share in the rest!" Tian Jifeng said to him.

"Hey, hey, I don't know the hearts of good people, and you don't want to ...... if you have the opportunity to make money cheaply," Jiang Wangfeng said.

"Then you do it!" Tian Jifeng said without hesitation.

What does this mean? Do you think the topic is too simple and boring?

Middle-aged people are even more confused.

"Ten copper coins for a question!" he said.

"I'll do it. Xu San said with a smile, breaking the deadlock.

In terms of age, he is actually not much older than them, but he is used to being a senior brother in the old woodyard, and he really has the temperament of a big brother.

"Twenty-three chickens and thirty-five rabbits. He answered in an instant, and then explained, "We have done this question before, and the numbers are exactly the same, there is no difference. ”

Chickens and rabbits in the same cage, from ancient times to the present is a mathematical problem, with the simplest one-dimensional equation can be solved, Xu Wen just talked about it not long ago.

I see. However, have you even talked about this question...... The middle-aged man pondered again for a moment and came up with a second question.

It is still a practical problem like this, which is a relatively well-known topic in communication and calculation.

A group of young craftsmen squatted down in unison and began to write calculations on the ground with branches.

After a while, the three of them raised their hands together and shouted together, "Twenty-seven!"

What if you get it all right?

The middle-aged man was a little stunned, and then Xu Wen pointed at it casually and said, "Hu Qi is the first, he is the fastest." ”

How can this be seen?

Middle-aged people know that young people of this age are the best to win, and the most difficult to manage. In his opinion, the time for these three people to report the number is about the same, and if someone insists that one of them wins, he will definitely be unconvinced, and there will definitely be contradictions.

As a result, the three of them stared at each other, and the other two gave Hu Qi a punch, and they were recognized.

"Come again and again. The others stared at the middle-aged man together, waiting for him to continue the question.

It is easy to tell from their eyes that they really like this, the numbers and the way they are combined, and the process of doing the math and coming up with an accurate answer.

It's all so interesting to them!

This thirst for knowledge makes people completely forget that they are a group of mud-legged people who are at the bottom of society, completely uneducated, and often pass by by the upper class with their noses covered......

"The third question. The middle-aged man suddenly calmed down and spoke again.