Deep Space Fleet

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After being so excited for a few minutes, the same question came to mind.

"7812378*7812378=..."

? ? ?

? ?

Still can't make it within a second, what's going on?

As... ahem, a genius, he shouldn't be troubled by this kind of problem!

Zhang Yuan frowned, a multiplication vertical formula appeared in his mind, and he stumbled for half a minute before jumping out of the final result.

"61033250014884."

It's ok, it's still done.

After thinking about it carefully, a hint of confusion appeared on his face.

"So that's how it turned out... When I encountered this kind of problem, I solved it directly with the computer, so that my calculation skills were greatly degraded. If I didn't think about it with my brain, even a genius would not be able to jump out of the answer immediately..."

"The calculation is slow now, just because the proficiency is not enough, and the relevant skills are not mastered. If you use mental arithmetic for a long time, you will definitely get better."

the next day……

Zhang Yuan woke up sleepily and rubbed his confused head.

It may be because I was too excited last night and kept testing my IQ, so I couldn't fall asleep for a long time. By the time I finally fell asleep, it was almost dawn.

At first glance, it was already 10 o'clock.

"Oops!"

Zhang Yuan rolled over from the bed, washed up quickly for a while, and then hurried out of the house.

"I hope I won't be late, otherwise my sister-in-law will have to talk about it for a long time..."

The 30-day vacation is very urgent, and there are clear arrangements for each day. Today, I have made an appointment to go to my aunt's house for lunch.

In July, Donghua City was like a furnace, with a tumbling heat wave, and the plants on the roadside were in dire straits.

Zhang Yuan hurried to the subway station, where there is always a comfortable air conditioner.

There is no shortage of energy in this era. The power generation of each large-scale fusion nuclear power plant is comparable to the former Three Gorges Hydropower Station. The price of domestic electric energy is as low as 3 cents per kilowatt-hour.

Thanks to this, in addition to the high prices of original petroleum derivatives such as plastics, energy-intensive industrial products such as steel and cement have become extremely cheap.

In particular, the vigorous development of nanotechnology has allowed building materials to be updated from generation to generation. To give a simple example, if nano-silica is added to 6% of the amount of cement, the compressive strength can be doubled, and the workability of concrete can be improved in all aspects.

The popularization of cheap new materials has made the urban surface buildings taller and taller, and there are many high-rise buildings with a height of one thousand meters.

Two hundred years ago, the 828-meter-high Burj Khalifa was the tallest building in the world, but now it can only be the tallest building in the village.

And... At the same cost, at least five can be built!

Some traffic rails are even placed at a height of thousands of meters, with skyscrapers as the track pillars.

These are popular in almost all big cities, and the sky track becomes the facade of the big city.

"A lot of people."

Donghua City is one of the five first-tier cities in Xia Kingdom. Even though the morning rush hour has been missed, the subway station is still crowded with people.

"Passengers, please be courteous to the elderly and children."

"Do not smoke or beg in the carriage."

It is impossible to completely solve the traffic problem.

Trolls can always find the most comfortable angle to criticize the government. If the means of transportation are too crowded, the government will definitely be criticized; but if there are too many subways and there are a lot of empty seats, it will be considered a "waste of taxpayers' money" . Anyway, it will be sprayed no matter what, so it's enough to use it alive.

Zhang Yuan was at the back of the line, and when he heard someone complaining about "no more trains" and so on, he smiled in his heart, but he didn't have too many thoughts, but just picked up his phone and started to read the questions.

This is a very popular "Super Brain" app, which can test a person's memory, arithmetic ability, and reasoning ability. Anyway, it's boring to be idle. It's good to do a few questions, and test your IQ by the way.

IQ is currently his most concerned issue.

Whenever it is tested that my IQ is very high, the feeling of refreshment is hard to describe in words.

The subway station was very noisy and it was difficult to concentrate, but for some reason, doing the questions always gave him a wonderful sense of accomplishment, making him feel like eating chocolate beans.

Maybe after using that potion, there is an extra attribute called "workaholic" on his body?

"I finally understand why some people are willing to work all day long. It turns out that they are happy and don't want to. Using their brains has become a very fun thing!"

Ding dong...

When the subway entered the station, the crowd poured in like a tide, and the area where the queue was originally emptied.

Zhang Yuan walked into the subway, found a random place to stand, and brushed one question after another.

With the increase in proficiency in the four arithmetic operations of seven digits, the original one calculation in half a minute has become one calculation in 10 seconds, and the calculation speed is still increasing.

The feeling that the answer was ready to come out finally appeared slowly.

The more he used his brain, the more effective he became, and the result made him very satisfied.

Soon, he began to be dissatisfied with the ordinary four arithmetic operations, and became a square root operation.

"Let's start with a simple one, √7812 (reserve four significant figures)"

Zhang Yuan raised the difficulty for himself.

There are many different ways of manually squaring an integer. The most common one is called trial quotient, which is somewhat similar to division, as long as the mental arithmetic ability is sufficient, it can indeed be calculated directly.

There are also some algorithms that are slightly troublesome, such as continued fraction expansion, dichotomy, Newton iteration, and so on.

Fifteen seconds later, he came to a concrete conclusion.

"√7812=88.38..."

The answer is correct!

"√444"

"21.07"

The answer is correct!

Ha ha!

Is this... how it feels to be a genius that day?

It's... delicious!

It was very quiet in the carriage, except for the electronic notification sound of the subway, everyone was busy immersing themselves in their own world.

Occasionally, a few guys, I don't know if they were reading a novel or watching a video, and saw the climax, and couldn't help laughing, like a fool...

"The fragmented time on the subway should be used for self-improvement, not entertainment!"

A "public intellectual" who returned from studying abroad frowned, lamenting this bad social atmosphere.

The phenomenon of "head bowing people" is often criticized by major media, but it is not very useful to criticize. Everyone should have fun, and those who should bow their heads should bow their heads. The government can't let the government legislate to prohibit the use of mobile phones in public places, right?

This man's name is Ye Fan. From his point of view, in foreign subways, everyone reads newspapers instead of playing with mobile phones, and the atmosphere is a hundred times better than that in Xia Guo (actually, there is no Internet).

Anyway, in his impression, young people living abroad live a much healthier life than young people in Xia Country!

"It's no wonder that this group of people can't go to space, it's because they spend their study time on entertainment...it's strange to be able to go to space!" Ye Fan thought secretly.

"What's a saying called? I just spend the time other people drink coffee at work..."

Especially the short-sleeved young man next to him, with a sweet smile on his face.

Tsk tsk, you should be in love with a two-dimensional girl, right?

Nothing!

(First of all, let me explain the title of this book. I originally wanted to name it "Deep Space Era", but it is too serious, and the click-through rate will be very low.)

(Science fiction, everyone knows that although "The Wandering Earth" is a hit, it doesn't mean that other science fiction can also hit. Most people probably don't want to read the title "Deep Space Era" directly, not at all. kind of point.)

(If you think about it, let’s replace it with this one, "Deep Space Ball Leader", it sounds very earthy, but the click-through rate should be higher...)