Open an aircraft carrier to fight against Japan

Lin Yuan smiled and said, "Since there is a competition, let's place some bets, shall we?"

Xiao Dezhang smiled and said, "Okay, then tell me what we are betting on?"

Lin Yuan smiled and said, "My bet is high, do you dare to agree?"

Xiao De Zhang sneered and said, "Let's listen."

Lin Yuan smiled and said, "If I win, I will be solely responsible for the land measurement and liquidation!"

Xiao Dezhang said: "What if you lose?"

Lin Yuan said, "What do you want me to do?"

Xiao Dezhang said: "If you lose, you will not be allowed to meddle in the land affairs in Gansu anymore! You have to kowtow to me in public to apologize and compensate us for our losses!"

Lin Yuan asked, "I can understand not interfering in Gansu affairs, but what's the point of kowtowing and apologizing?"

Xiaode Zhang said angrily: "You smashed the Longmen Pavilion and insulted the scholars all over the world. Shouldn't you apologize to them? I accept your apology on behalf of them!"

Lin Yuan nodded and said, "Okay, I promise you!"

Xiao Dezhang said: "Then let's make an agreement. If you are alone, the numbers you can measure and calculate will be more accurate than the numbers made by so many of us. If you can't do it, you will lose!"

Lin Yuan smiled and said: "Of course, if I do it, you will lose!" After Lin Yuan finished speaking, he turned to look at the crowd behind him, and said loudly: "All the fathers and folks please be a witness together!"

Xiao Dezhang said: "Okay, tomorrow morning at ten o'clock, Xianda Academy, let's come and have a good competition!"

Xiao Dezhang smiled slightly, and walked to the back hall, Yuan Yulin whispered beside him: "My lord, Lin Yuan is full of tricks, could today's incident be a situation carefully designed by Lin Yuan?"

Xiao De Zhang smiled and said, "Your Majesty Yuan, don't worry, no matter how powerful Lin Yuan is, he can't be better than so many people by himself, and you have to do it yourself to measure the land. Even if he has great skills, he can't measure more Hurry up! So Lin Yuan will definitely lose this bet!"

Yuan Yulin was still a little worried, and turned to look at Lu Fang, who smiled and said, "Don't worry, my lord, my ancestor was the disciple of Mei Wending, the first famous master in the Kangxi period, who was proficient in the art of arithmetic, and the method of that fellow Lin Yuan. It couldn't be more accurate!"

Yuan Yulin's face softened a little, and Lu Nan continued, "If you are still not at ease, my lord, let's make another evil move tomorrow! I guarantee that Lin Yuan will lose in a complete mess!"

Yuan Yulin asked, "What evil move?"

Lu Nan smiled and said: "Tomorrow we will not only compete with him accurately, but also compete with him faster. Lin Yuan only has one person. Tomorrow I will bring ten people, ten against him. Let's give more questions, and I will I don't believe that Lin Yuan alone can count faster than ten of us!"

Only then did Yuan Yulin show a gratified smile. On the second day, Xiao Dezhang, Yuan Yulin, and Lu Fang brought people to Xianda Academy early. Sit down on the edge of the table, take out the abacus and other things and prepare them, then walked up to Yuan Yulin and Xiao Dezhang and whispered: "My lords, my subordinates have already prepared everything, just wait for Lin Yuan to come and admit defeat." !"

Xiao Dezhang nodded with a smile, nodded to a follower, and asked, "What time is it?"

The attendant took out a brocade box from his pocket, opened it, glanced at the watch inside, and said with a smile, "It's already nine fifty!"

After hearing this, Xiao Dezhang smiled disdainfully: "It's already this time, Lin Yuan must not dare to come, what excuses do you think Lin Yuan will make?"

Everyone echoed at the side, and at this moment, Lin Yuan came in from the outside with two followers, Xiao Dezhang snorted coldly, and said, "Lin Yuan really dares to come."

Lu Fang walked up to Lin Yuan, pointed at the table next to him, and said with a smile, "Master Lin, your table is over there."

Lin Yuan saw ten people sitting across from him at a glance, and asked in surprise, "Are you going to compete with me with ten people?"

Lu Fang smiled and said, "Yesterday, you said that you can do it alone. Mr. Lin is not going to break his promise, is he?"

Lin Yuan chuckled, and said, "Why?" Then he turned to a follower and said, "Take out the things." Lu Fang then saw Lin Yuan's follower open a leather bag, and then took out a black square bag from inside. Passing the box to Lin Yuan, Lu Fang asked in surprise, "What is this?"

Lin Yuan took the square box and said with a smile, "You use the abacus, and I use the abacus. Is this my abacus?"

Lu Fang asked in surprise: "Abacus? Why are there no beads?"

Lin Yuan smiled and said, "I'll open the box." As Lin Yuan lifted the box, Lu Fang was surprised to find that there were two square boxes, and the bottom one had many small squares on it. Each square has a symbol on it, and those symbols look a lot like the British alphabet!But the square above is like a piece of black glass.

At this moment, Lu Fang saw Lin Yuan press a small square, only to hear the square box make a "buzz", and the glass-like thing on it lit up, an image appeared, and a sound came from the side of the box. Hearing the sound of "huhu", Lu Fang jumped back in fright, pointed at the square box and said, "It's actually alive?"

Lin Yuan smiled and straightened the laptop in his hand, and said with a smile: "Aren't we going to compete? Should we compare?"

Lu Fang calmed down, cleared his throat, and said loudly to everyone in the audience: "I announce that the competition begins. The first item, both sides will explain the method of liquidation!"

Lin Yuan thought to himself: "I didn't expect the first item to be the method of calculating the area. The common people in the audience may not understand this thing. The reason why he wants to compare this is probably because he wants to test my background." At that moment, Lu Fang waved his hand at one of his subordinates and said, "Have someone lift the blackboard up."

Then the two subordinates brought up a blackboard and stood it in the courtyard. Lin Yuan thought to himself: "Does China have blackboards and chalk in this era?"

At this time, I heard Lu Fang say: "This blackboard was bought from a Westerner, and the words written on it can be wiped off. I will explain our calculation method first, and I will use it as an introduction!"

After Lu Fang finished speaking, he picked up a piece of chalk and drew a scalene quadrilateral on the blackboard, then pointed to it and said with a smile: "Now we know the lengths of the four sides, but it is impossible for us to calculate the length of this square. How big! Do you know why?"

Lu Fang's voice was very loud, and everyone in the audience was attracted by him, looking at him curiously, Lu Fang said to one of his subordinates, "Bring the things up!" Everyone stared at Lu Fang's subordinates curiously, only seeing Lu Fang's subordinates Walking over with a square wooden frame, Lu Fang took the wooden frame, pulled it with his hands, and said with a smile, "Did you see it? This wooden frame can be changed in any shape, so the size is not fixed!"

Lu Fang pointed back at the quadrilateral on the blackboard, and said, "This quadrilateral does not move, why?" Lu Fang pointed to the angle between the two sides, and said, "Because this angle is fixed. , so the quadrilateral won’t move.”

Lu Fang pulled out his chest at this point, and said: "Other people's measuring methods can't measure this angle, but we can. This is our brilliance! After measuring the angle, we can solve the area of ​​this shape." , as for how to solve it.”

Lu Fang smiled and asked Lin Yuan: "Master Lin, I wonder if you know it?"