Chapter 815: Abacus!
"Not only people, if the number does not exceed the conventional, the abacus may surpass the computer in the calculation speed of addition and subtraction. ”
Facing Ibn questioning, Su Huai smiled calmly:
"After all, the calculator is a bit more complicated to enter. ”
This ancient Chinese abacus has little significance in modern society, but after it is found to become mental abacus, it has great exercise value for the development of brain power and reasoning logic.
In many international speed arithmetic competitions, the contestants use the abacus method.
Su Huai applied him to logical reasoning questions, which was extremely convincing.
Faster than a calculator?
Su Huai's ridiculous explanation, let alone Ibn , even the Chinese audience in front of the TV couldn't believe it......
Ibn sneered, and immediately asked, a question in everyone's mind:
"Mr. Su, can you show us what this so-called ancient Chinese abacus is?"
He has been doing quick calculation research for so long, exploring the limits of the logic of human brain thinking, and he doesn't believe that there is any calculation method in ancient China that can catch up with modern people, and he has never heard of any abacus!
Su Huai delayed for a while, and the staff had already taken his bag from the bus, and everyone saw Su Huai take out an extremely strange-shaped thing from the bag and hold it in front of people.
Everyone stared, and heard Su Huai's voice sounding slowly:
"The abacus utensils are called abacus, its shape is rectangular, the circumference is a wooden frame, and the straight column runs through it, commonly known as 'file'. Generally from nine to fifteen gears, the file is horizontal to the beam, two beads on the beam, each bead is counted five, five beads under the beam, each bead is counted one,
When the operation is located, the bead is calculated, and the addition, subtraction, multiplication and division algorithms can be done. ”
As he spoke, Su Huaibian crackled with his fingers, allowing everyone to see the principle of the moving calculation of the abacus on the abacus.
But the abacus thing looks more like a massage appliance of traditional Chinese medicine, more than a calculation tool, people see close-ups in the camera, and still don't understand, how is this thing counted?
Only Doyle, Edogawa, and Ibn were lost in thought when they saw such a small toy, and they, the experts in logic and mathematics, came to a conclusion that surprised them after a little observation.
Doyle was surprised: "Mr. Su, your Huaxia abacus doesn't seem to be a calculator, but a register. ”
Su Huai nodded and said: "Mr. Doyle is really an expert, Huaxia's abacus can calculate, in fact, it is not this tool, but the algorithm created by the ancient Huaxia people, and a pair of skillful hands." ”
Saying that, Su Huai took the abacus in his hand and "snapped" a bead and said:
"If Mr. Doyle wants to learn, I can teach you this math now. ”
Doyle narrowed his eyes slightly, Su Huai was not ashamed of his words, obviously trying to provoke him, but he smiled and said:
"Okay, I'd love to know, what is this abacus division formula?"
Looking at so many abacus beads on this abacus, this addition and subtraction should not be difficult, but the difficult thing is multiplication and division.
Su Huai said with a smile: "It is not difficult to divide, this mantra is, one return (divide by 1): every one into one, every two into two, every three into three, every four into four......"
Before Su Huai could finish reading, Edogawa interrupted his teasing and proposed:
"Mr. Su, you said that these viewers can't understand either, our program has limited time, since you know this abacus, why don't we directly try this quick calculation. ”
Su Huai just declared that he used mental arithmetic, which was higher than her level of quick arithmetic, and Edogawa had long wanted to come and compete with Su Huai in person, and now seeing Su Huai take out this abacus, where can he still live in peace.
At this time, Su Huai sighed slightly: "I am still not good at learning, I can only do four-digit multiplication and division, and no matter how much I do, I can't do more." ”
When these words came out, many viewers were taken aback, they originally looked at this abacus, and they were secretly thinking in their hearts, just a few beads, at most, even if the two-digit multiplication will break the sky, no matter how much, the number of beads will not be enough, right?
Su Huaiyi came up and said that he was not good at learning, and could only calculate the multiplication and division ...... between four digits?
4X4 That's eight figures going up, right?
Director Yi was originally full of confidence, but at this moment, when he saw Su Huai really take out something strange like an abacus, he was also a little nervous, and said in a deep voice:
"Okay, then ask Mr. Su and Superintendent Edogawa to compare the speed of quick calculations, and see if Mr. Su said that abacus is so magical. ”
After speaking, regardless of whether the TV station people agreed or not, he asked the two assistants to sit aside with calculators.
Director Yi originally wanted to write out the title first, but imagined that there were cameras all around, for fear that the Chinese people would make a ghost, so he said:
"Okay, the two of you, please get ready, I'll be out of the question now. ”
Edogawa nodded and closed her eyes intently, she didn't take any pen and paper, because for a quick arithmetic master like her, mental arithmetic is faster than pen arithmetic.
Formulas can be done in your head.
Su Huai also loosened his fingers, snapped two abacus to warm up, he was a quick calculation team when he was a child, and his annual performance program was to go to the bank and compete with the young accountants of those banks.
Of course, the result is a big victory for the children of the abacus team, and this competition is to put it bluntly, that is, the old accountants who know abacus educate the newcomers through their children's hands and satisfy the vanity of the old-timers.
Touching the abacus and looking at the opponent opposite, from the bank's accountant with a calculator to a quick calculation world champion, I also felt very emotional, I didn't expect him to think that his most useless talent would come in handy one day.
When Su Huai was distracted, he heard Director Yi say loudly:
"7467 times 3798!"
Director Yi looked at Su Huai's eyes out of focus, obviously thinking about things, so he took the opportunity to hurry up the question, and the result really made Su Huai slow down by half a second.
Director Yi also thought to himself, the four-digit multiplication, Edogawa can calculate it in less than 6 seconds, I don't believe that your abacus can surpass her.
But just thinking like this, I saw Su Huai put his hands on the abacus and "crackle!" A series of incredible high-speed movements, and then I heard Su Huai's voice coming:
"The result is 28359666."
At this time, it was only about 2 seconds from the time he finished reading the question to Su Huai's start to report the answer, and it took Su Huai one second to report the answer, but it was only 3 seconds......
Everyone was dumbfounded, Edogawa turned his head and stared at Su Huai with wide eyes, while Director Yi opened his mouth and looked at the calculating assistant.
The assistant was sweating profusely, obviously not having finished entering the 8 numbers, and waited for about 3 seconds before reporting the numbers;
"As a result, 28359666......"
Not a single number is wrong!Exactly!?
The people at the scene seemed to be frozen, and even Director Sun, Qiu Shuzhen, and Zhou Gongxing couldn't believe what they heard.
At this time, countless people who picked up the calculator in front of the TV also calculated the numbers at this moment, and looked at Su Huai on the screen with a dumbfounded eye, and the same thought surged in their hearts.
Oh my god...... Is this guy really human~~?
No one can imagine...... How can anyone, with a pair of hands and a wooden object, surpass a human electronic calculator in calculations!?