Open an aircraft carrier to fight against Japan

Lin Yuan thought to himself: "I said, why are they so confident? It turns out that they have mastered the method of measuring angles. If they measure the angle and combine it with trigonometric functions, they can calculate the area of ​​the land. The 'half the side' method is much more accurate, and their calculations are similar to mine, using trigonometry."

Lin Yuan smiled and said, "It turns out that Mr. Lu also used trigonometric functions for calculations. To be honest, the next method also uses trigonometric functions, so there is no need to talk about it."

Lu Fang was shocked when he heard it, and thought: "How can Lin Yuan know trigonometry? He must be cheating me, he may not know trigonometry!" So Lu Fang laughed: "How can it work? Let Lin Yuan know Come up and explain it, my lord."

Lin Yuan thought to himself: "What is there to say? The common people off the field and Xiao Dezhang on the side must not understand, and you know it!" So Lin Yuan said: "Let's hurry up the game, or my The computer must be dead."

Lu Fang frowned and asked, "What did you say? What does 'computer' mean?"

Lin Yuan regretted his slip of the tongue, and laughed quickly: "It's nothing, it's nothing, let's start the competition quickly, how should we compare?"

Lu Fang said with a smile: "We measured sixty groups of four-range fields before, but we haven't calculated how many acres there are. Today we are here to compare the calculations. The faster and more accurate person will win. What do you think?"

As soon as Lin Yuan heard it, he thought to himself: "Couldn't they have already calculated the result?" But then he thought: "They shouldn't be such rascals, after all, ten of them beat one of them!" So Lin Yuan smiled and said: " Of course you can, but there is one thing, it seems difficult to judge who wins and who loses, right? Who is faster and easy to judge, just see who finishes the calculation first, but how to judge who is more accurate? The premise of judging whether it is accurate or not is to have a benchmark. But right now we don’t have that benchmark.”

Lu Fang smiled and said, "Lord Lin, don't worry, of course we have a solution!" After speaking, Lu Fang shouted to his subordinates, "Bring up the things!" Lu Fang's subordinates brought up two large boxes, and Lin Yuan opened the first box. Looking at the lid, it was full of fine yellow sand. The sand was very fine. Lin Yuan asked in surprise, "Where did you get such fine sand?"

Lu Fang smiled and said, "Of course it was sifted through a sieve." As Lu Fang said, he opened the second box, which contained a square glass and some wooden sticks of different lengths. Lin Yuan asked : "What are these?"

Lu Fang pointed to the wooden strips and said, "These wooden strips represent the four sides of the four-range field, and they are scaled down. Master Lin, do you know what proportion is?" Then put the sand inside, the height of the wooden strips is fixed, so the volume of sand in this area is certain, do you understand?”

Lin Yuan nodded again, and Lu Fang then picked up the square cup and said, "The area of ​​this cup is already known. We put a certain volume of sand into the cup, flatten it, and then measure the height of the sand. Get the volume of the sand, and then divide this volume by the height of the wooden sticks to get the area enclosed by the wooden sticks, do you understand?"

Lin Yuan thought for a moment after hearing this: "They are converting an amount that is not easy to measure into an amount that is easy to measure. This basic principle is widely used in modern science and technology, such as the determination of the gravitational constant and the speed of light. ! This Lu Fang is really talented!"

Thinking of these, Lin Yuan couldn't help admiring: "Although there are certain errors, it's still very ingenious!"

When Lin Yuan was with these people, he seldom praised others sincerely. His compliments were either ironic, or paved the way for future crackdowns on satire, so this compliment was very sweet. Lu Fang really felt like he was going to float when he heard it. !

Lu Fang said proudly: "Okay then, let's start the competition. There are sixty sets of questions in total. Let's issue the questions now." At this time, one of Lu Fang's subordinates came over, and the two pieces of paper full of numbers were distributed to Lin Yuan respectively. With Lu Fang's men, Lin Yuan looked at the ten people and thought: "Look up the trigonometric function table, and then calculate addition, subtraction, multiplication, and division. How can you just use the abacus to type faster than my computer? Needless to say, there are ten of you, even if you are Twenty, I can easily beat the speed."

While thinking about it, Lin Yuan opened an area calculation program. This program was written by him last night. With this program, all Lin Yuan has to do is to input the data, and then click "Calculate", the program will automatically Plug the values ​​into pre-programmed formulas, and the area data works out.

While watching the ten people frantically looking up the data, and listening to the "crackling" sound of the abacus, Lin Yuan leisurely typed on the keyboard and entered the data. Seeing Lin Yuan's slow look, everyone in the audience commented: "Shuai Lin What is that square box in front of you?" "Didn't Shuai Lin say it was an abacus?" "But why didn't Shuai Lin use a pen and paper to write down the calculated numbers?" "What do you know? Shuai Lin has seen it before." The gift of not forgetting, there is no need to write those things down."

Although Lin Yuan couldn't hear everyone's discussion clearly, he could feel their surprise, and thought to himself: "Haha, laptop, this is the advantage of the traverser!" Lin Yuan entered the data secretly, and entered Halfway through, I suddenly heard a person on the opposite side say: "Lord Lu, I'm done!"

Lin Yuan shook his hands when he heard this, and almost pressed the delete button to delete all the data entered before. He thought in surprise: "They finished the calculation? How could it be so fast? I can't underestimate the enemy, I have to enter the data quickly! "Thinking of this, Lin Yuan couldn't help but speed up the data input, secretly regretting that he shouldn't be too big at the beginning, and wasted a lot of time!

Just when Lin Yuan entered forty sets of data, another person on the opposite side said, "I'm done with the calculations!" Lin Yuan's heart moved, and a data was entered incorrectly, so he had to delete and re-enter, and it was delayed for a while. At the same time, several people on the opposite side said loudly: "I'm done!"

Lin Yuan thought: "Is it going to lose? What a careless loss of Jingzhou! Absolutely not to lose. If you lose, you will not only kowtow to Xiao De Zhang to apologize, but also leave the Northwest, and you must not interfere in the land distribution affairs! Kowtow to apologize is a minor matter. It’s a big deal to leave the Northwest!” Thinking of these, beads of sweat appeared on Lin Yuan’s forehead, and when he got nervous, he mistyped some data.

Just when Lin Yuan entered the [-]th group, he heard Lu Fang say loudly: "Master Lin, we have finished the calculation, you lost!"

Lin Yuan only felt that his mind was blank, and then he told himself: "Don't worry, you will definitely be able to figure out a way to turn the situation into victory!" Lin Yuan had an idea, and thought: "They did it by hand, it must be better than me using a computer If it’s accurate, I’ll work harder on it, and let’s force a tie first!”

Lin Yuan figured out a way, and felt that his hand was much more stable. He quickly finished inputting all the data, clicked the calculation, and then a string of data appeared on the screen. Lin Yuan smiled and said, "Lord Lu, don't worry Let’s talk about victory and defeat, we still have no comparison in accuracy!”