I'm really the captain of the flying Henan people.

Chapter 68 Mathematics, God forever!
The island is getting closer.

"Much smaller than Treasure Island, but bigger than Beach Island!"

Chen Chang'an climbed onto the mast and managed to see the whole picture of the island clearly.

What does it look like... a rectangle plus two isosceles triangles, Chen Changan didn't know how to describe this strangely shaped island for a while, and suddenly a flash of inspiration came to his mind:
"Isn't this just a big gamepad?"

"I'll just call you Joystick Island!"

With the sailing of the Flying Henan Man, Chen Changan got closer and closer to the island.

As a veteran Jianxian, Chen Changan not only knows a little bit about midwifery, but also learned a little bit of surveying and mapping knowledge from the brother in the fishing club, and quickly deduced the length and width of the island.

Rectangular part of the island, about 25 meters long and about 10 meters wide;
Two isosceles triangles with a base length of about 5 meters and a height of about 15 meters;
Thanks to the strong physical education teacher who often fell ill, Chen Changan had the time to learn more mathematics knowledge, and he quickly calculated the real area of ​​the handle island - more than 320 square meters.

After approaching the beach, Chen Changan jumped off the boat.

"Chirp~"

Cheng Zi, who loved his master the most, let out a cry, as if to remind Chen Chang'an of the past on Treasure Island.

Although the Stone of Choice said, "There is an uninhabited island there, without any extraordinary creatures, suitable for farming and development!"

But he will not take personal risks. Although fish cannot go ashore, ghost fish can.

Chen Changan turned his head to look at the five undead marine creatures under the sea surface, and said with a smile:
"Is there any fish willing to spy on me for me? If you don't want to go, raise your hand above your head."

Killer whales, narwhals, great white sharks, basking sharks, and bull sharks all raised their tiny hands (fins), but to the despair of the fish, they could not lift their fins even if they tried their best. overhead.

Chen Changan showed the smile of a capitalist from the Beacon Country:
"We need to pay attention to democracy. One fish, one vote. You can vote for other fish, or you can vote for yourself. The fish with the most votes is responsible for going ashore and detecting danger for me."

After a "shark battle with whales", the killer whale was cast with a full 4 votes, and even the narwhal backstabbed it without hesitation.

Dejected, the killer whale swam ashore silently and began to inspect the handle island.

Chen Chang'an looked at the killer whale's appearance of wanting to cry without tears, and even suspected that it would learn the "Palm of Depression" without a teacher.

The pattern of the handle island is not complicated. The two isosceles triangle handles are actually "mountain tops" about 15 meters above the water level, and the rectangle is a slope extending slightly toward the top of the mountain.

Although the island is not big, about six times the area of ​​the Flying Henan Man, a large slope is suitable for farming.

As a Chinese, Chen Changan said: DNA has moved!

The killer whale turned the handle island three times and three times, but did not find any dangerous factors. The strongest king on the island was just a sea turtle with delicious meat.

As for why the first impression of killer whales is that the meat is delicious?

5 minute later.

Chen Chang'an respectfully asked the sea turtle to take a hot bath, cleaned up the impurities in the body, performed the bloodletting therapy popular in the Middle Ages in Europe, and then removed useless things like the turtle shell and gui head.

Sprinkle some salt, pour some soy sauce, and put a few dried chilies.

Not long after, the smell of meat filled the air!
Chen Changan feels sorry for the fall of the strongest king of the handle island, and sincerely wishes that it can obliterate the Dao, reverse life and death, rise from ruin, recover from extinction, and live out a second life! ! !

Tears fell unconsciously from the corner of his mouth.

"It's so fragrant!"

Chen Chang'an made three bowls of sea turtle soup in a row, dry soup person, dry soup soul, dry soup dry master!

After drinking and eating, Chen Chang'an finally started to get down to business.

Coordinate System!
With six choices, six opportunities were found for Chen Changan. He is not a fool looking for a sword.

Chen Chang'an collected the only geography knowledge left in his mind, assuming that the direction of sunrise is east, and the direction of sunset is west. Taking the island of the handle as the origin, he began to calculate various locations and brief sea charts.

Ocean forest, 23 degrees south by east, sailing 13 kilometers... The elder mermaid looked very enthusiastic, and Chen Changan felt panicked, his back tightened, and he swore viciously in his heart:
Only bugs go to the ocean forest! ! !
Jinshan Island is located 95 kilometers to the south;

Offshore shipyards need to use the Pythagorean theorem and acute-angle trigonometric functions in right triangles, and the final calculated position is...

For the unknown existence of the city in the sky and the asdfhadjoi under the sea, Chen Changan felt that he had to become a little bit stronger.

After four occasions on the sea surface to locate, Chen Changan successfully drew a simple map of the sea area near the handle island. Every time he travels in the future, he can continue to record the landscape on the sea for positioning and enrich the content of the sea map.

No wonder the ancient navigators often had a wealth of mathematical knowledge!
Live to be old, learn to be old!

Before going to bed, Chen Changan opened the forum, and habitually wanted to share the new knowledge he had mastered with the "Collection of Novice Survival Experience", but suddenly discovered that the deep-sea forum, which was originally polluted by cults, careerists, celebrities, and politicians, was actually polluted by A content storm set off by Chinese mathematics enthusiasts swept through,

Destroyed, crushed all pickled stench, and ruled the hot searches of the entire deep sea forum!

Hot Search No.1: Mathematics!

Hot search No.2: Trigonometric functions!

Hot Search No.3: Geography!

Hot Search No.4: Mapping
Hot Search No.5: Fellow
Everything starts with the all-night sleepless mission.

There are hundreds of millions of Chinese who have completed the task of staying up all night, and everyone has gained the ability to extract time items once.

Among them, the direction stone is the most common prop, and the number of distributions exceeds [-] million.

The Direction Stone can mark six different locations for the captain and provide the ship's sailing distance to the six locations.

Just like Chen Changan used trigonometric functions to draw a map of the sea area near the handle island, the progress of mathematics enthusiasts and geography experts far surpassed him, and one after another piece of small sea charts were drawn.

Once the direction stone provides the same location, it means that the sea areas represented by the two charts are connected and can be merged into a larger chart.

More and more Chinese people have taken the initiative to share the data of the Stone of Direction, and the surviving mathematics enthusiasts all over the world have gone online one after another, connecting the fragmentary small charts into lines, and the lines into pieces.

In the end, the mathematical background accumulated by human society for thousands of years suddenly exploded!

Millions of computing posts quickly exchanged data and intelligence, and were finally aggregated and fused by dozens of "Da Vinci-style" masters in all fields.

The panorama of the human ocean, at this moment, has been deduced by countless mathematics enthusiasts, geography experts, engineers, modeling madmen, and computer masters to work out its true appearance!Calculated a brand new world!

The top mathematicians divided the entire sea area into 26 large sea areas with 26 letters, and each large sea area was divided into 1000 to 10000 small sea areas, and each sea area was named after the location with the highest direction stone. .

The sea area where Chen Changan is currently located is the No. X Shipbuilding Sea!
At the beginning of coming to the deep sea world, people are separated by hundreds of kilometers. Unless it is Chen Changan's kind, the 80 billion human beings have hardly ever seen a human being other than their relatives!

But starting today,
Even if there is only one sea, one person, and one raft between the sea and the sky, silently enduring the torment of being alone,

He can also point in a certain direction, full of expectations:
"Come on! If you swim 120 kilometers there, you can meet fellow villagers!"

(End of this chapter)