Shang Yi heard people say that the world is colorful. The sky is composed of blue and white, the soil is brown, yellow and black, and the flowers include green, yellow, red and white.

She couldn't comprehend these colors, because in Shang Yu's eyes, the whole world was gray.

In order to treat her, her father exhausted the small amount of family wealth.

Whether it is the ghost scholars of the northern crystal city, or the secret recipe of the southern elves, or the reclusive ancient heroic souls of Saniro City, or even the potions physicians of the Yaocheng Shrine Society, they can't cure the confused eyes of the merchants.

All doctors and scholars have given the same judgment: eye diseases only get worse with age, and there is no cure.

Shang was accustomed to the gray of the world, but he didn't feel sad.

She just saw that her family was getting poorer and poorer, eating less and less meat, sewing and mending clothes and wearing them, and her father's small business was getting more and more difficult, and she wanted to contribute a little to the family.

Shang learned to read and write at the Enlightenment School in Yancheng, read a lot of books and parchments, and was admitted to the engineering college at the age of fourteen.

She studied engineering because her father was in the construction business.

But when he entered the school, he realized that engineering could not help a small businessman like his father, and mathematics was a subject full of magic.

In the academy, the most famous lecturer in mathematics is the prophet Shi Bao. This emaciated and amiable old man always took the trouble to explain calculations to his students, emphasizing the importance of this knowledge in the future.

Shang Yu knew very well that among the students who studied mathematics, he was by no means the smartest.

What impressed her the most was a classmate named Jiujian.

Jiujian has a strong ability to calculate, and he can always see the essence of calculation at a glance, and he can casually tell the difference between different mathematical calculations, and even the cross-application with other disciplines.

Genius learns mathematics quickly, but Shang Confused makes slow progress.

She was also so shocked that she wanted to give up math.

Math is too hard!

It's not something that an average person like me can learn.

Probably mathematics, like theology, must be a chosen one, she thought to herself.

In the last lesson, Shang Yu took the initiative to find Teacher Shi Bao.

"Teacher, I don't want to learn math anymore, thank you for helping me and solving my doubts during this time."

The old prophet looked surprised: "Why don't you want to learn?" Having trouble at home? ”

"No, my father gave me enough money for tuition......"

After listening to her reasoning, Shi Bao said with a smile: "So that's the case, that's not a problem at all." ”

"Shang Ming, do you know? All the knowledge that the Yao people have is a clumsy imitation and depiction of the god Yao God above our heads, as well as this world. ”

"We try to paint the whole world with a pen, so we use theology to observe miracles, use language to understand oracles, use medicine to understand our own weakness, use history to record and compare the past of the Yao people, and use engineering and geology to understand how mountains collapse and how water overflows...... Knowledge is simply the result of our artificial classification. ”

"Different knowledge represents different colors of pens. I believe that no matter which pen you choose, you are describing and emulating the same thing, which is the ultimate truth of this world. ”

The old prophet told her, "Mathematics is the same." To learn mathematics, the foundation of computing is of course important, but the most important thing is a persevering heart. We are all climbers who stand on the shoulders of those who came before us, and every step counts. ”

Shang was skeptical in his heart.

If you don't care about moving forward, will there be results?

She was ready to grit her teeth and hold on a little longer.

Gradually, Shang discovered that mathematics was too useful for businessmen. If you can set and calculate each business and get a result with a controllable error, you can achieve a near-predicted effect.

It's as magical as a spell!

Math is so much fun!

Shang is a slow learner, but she likes mathematics, so she doesn't feel bitter and tired.

It's just that her eyesight is getting worse and worse, just as the doctors say, and a little farther away, in her eyes, is a lake of mold, and there is gray fog everywhere.

But this has become a help for Shang to learn mathematics.

She is not drawn to the far-flung colors and gatherings that her classmates describe, and can focus on numbers and calculations on paper.

Shang Yu was so with mathematics, and after graduation, he stayed in school and became a mathematics lecturer, with a small salary, but enough for a normal life.

At the age of 29, Shang Yu's life ushered in a major event and a small thing.

The big thing was that she found the equation.

The equation is based on the four operations of Mr. Shi Bao, and is born of an equation containing unknowns.

That unknown is the answer to be calculated, and it can be the size in engineering, the dosage in medicine, the incantation in theology, or the proportion in smelting and casting.

This unexpected achievement made Shang Miao become a lifelong scholar of the White Castle, and he also received the attention and gift of Yao Shen.

She looked back and realized that she had come a long way.

Shang was stunned to understand what the teacher said.

- We are all climbers who stand on the shoulders of those who come before us, and every step counts.

It doesn't matter if the talent is not high.

As long as you are moving forward, every footprint has meaning.

A mediocre person like himself can also make some contributions.

In addition to this big thing, she also encountered a small thing.

Shang was married.

Her husband is an engineer named Mori Lu.

Moriro specializes in the construction of timber and soil, and is on the go all year round. The understanding between the two is also because of a bridge project in Yancheng, Sen Lu participated in the on-site construction, and Shang Yu made mathematical calculations on this.

Shang is confused with poor eyesight, and Sen Lu is not good at hearing.

"I had a drowning when I was a child, and when I recovered, my ears weren't very good."

Sen Lu smiled as he spoke, and he pointed to his ear: "But as long as you get close enough, you can still hear clearly, Miss Shang, as long as you get close, you can see clearly, right?" ”

Shang nodded confusedly.

Sen Lu said seriously: "Then when you talk to me, you can talk a little louder, and I will also get closer to you, please don't mind, please help me keep this little secret." ”

"It's okay."

Is Moriro's ears good?

Shang was not sure.

Sometimes he didn't react for a long time when Shang was confused, and sometimes Shang was confused, and he was very keen.

Sen Lu kept approaching her like this, and finally proposed to Shang Yu.

"I'm going to be blind before I'm old." Shang was stunned and reminded the other party.

"It's okay, I won't be able to hear until I'm old, let's be eyes and ears to each other."

Mori Lu said with a smile.

Shang was confused in the lake, and married him.

Of course, this is just a small thing.

But one year later, another big event happened.

A scholar of the White Castle approached Shang and said, "Mr. Pasha has come with a wurm and said that he wants to compete with the brass furnace dragon. ”

"Wurm...... Brass furnace dragon ......"

Shang was still immersed in an equation: "Me? What am I going to do? ”

"Have you forgotten?"

The scholar said, "Miss Shang, you are one of the designers of the new furnace dragon and the mathematical designer of this project. This is an important time to test the results, and you can't miss it. ”

New Furnace Dragon ......

Shang was stunned and reacted in his mind.

By the way, I almost forgot about it.

As she hurriedly packed up the draft, the scholar kept urging: "Don't pack up, come back and do this again, this is a historic moment!" Come with me. ”

"Okay, good ......"

Shang was stunned with a bag and ran outside.

I almost bumped into the forest road with a rose in my hand.

"Is there anything else going on today?" Mori Lu's face was slightly surprised.

"Well, there's an experiment over there at White Castle."

"Important?"

"It's important."

"Then you go, I'll wait for you...... But come back early, it's our first wedding anniversary. Sen Lu smiled and handed her a box: "This is a gift I prepared for you, for this thing, I have been preparing for almost five years." ”

"What is this?"

Sen Lu blinked: "Aren't you going to do an experiment?" Go to the White Fort and then open it with it. ”

Scholars are constantly urging in front.

"Then I'll go first!"

Shang was stunned to get into the fire carriage and arrived all the way to the test site in the White Castle.

At this time, the test site was already surrounded by scholars, all dressed in white coats, whispering to each other, and all eyes were looking at the air.

In the midst of everyone's exclamations, two behemoths of the Molded Lake appeared in the air.

Shang Yi squinted his eyes, trying to see the wurm's appearance.

But she was on the periphery of the crowd, and her height was not high, and her weak eyesight could only see a shadow.

At this time, she suddenly remembered the box.

What's inside?

Shang Yi cautiously opened the box and found that inside was a small piece of glass, which was framed by cowhide and cow tendon and turned into two round thin slices.

There was a note inside.

- Put it on.

Wear this thing...... How should I wear it? The two pieces of glass should correspond to ...... Eye?

Shang was stunned to put it on, and his eyes widened suddenly.

The original vista of the lake has become extremely clear at this time, and the line of sight has never been so clear and clear as it is now.

The hair on the scholar's clothes in the front, the brass handle on the spellcasting slot on the steps in the distance, and the horned creature in the middle...... A wurm with a hot body, wings spread, and fierce eyes!

It turns out that wurm is like this.

Shang was stunned excitedly to capture everything in the distance with his eyes.

At this point, the crowd gets out of the way.

The voice of the Apostle Lord Philus came from the front: "Then, let's introduce our new furnace dragon by Miss Shang Yu, she is the mathematical designer of the whole project, and she is also the key to making the furnace dragon active." ”

Everybody looked at it.

Shang Yu, who was wearing a glass slide on the bridge of his nose, clearly saw the many eyes cast by everyone for the first time, and his whole body suddenly tensed.

"Miss Shang, come."

Fellus's voice was gentle, but the skull head smiled with a hideous face, which made Shang Yu's feet a little weak.

She walked to the front tremblingly.

Facing her was the Dragon of the Dark Sun, who had a tall and strong dragon body and a cold gaze.

Just facing the dragon's gaze made Shang Wei feel a chill in his back and his fingers tremble.

She wished she could still see clearly.

Shang closed his eyes and took a deep breath, trying to stay calm.

Math, it's math time!

She opened her eyes and said, "...... The new furnace dragon, with a body length of 12 meters, weighs 24,000 stones, has more than 4,000 horsepower, and can carry 3 purple roses of the conqueror......"

The Dragon of the Dark Sun looked puzzled.

Philus coughed: "Miss Shang, Mr. Pasha is not interested in this, be simple. ”

I almost forgot.

Shang Wei looked at the shape of the wurm, held the slide with his fingers, and carefully observed it for a long time.

Then she said to the dragon king, "Mr. Pasha, this wurm is too small in size, and it has come across a new furnace dragon...... It's going to die. ”

As soon as the words fell, Shang Yu felt a huge sense of oppression.

The Dark Sun Dragon's eyes flashed with murderous intent and anger: "Very good, very good, since you are very confident, then let your toys and my wurm directly do it." ”

Shang Yi looked anxious: "I didn't mean that, it's just that that wurm can't win the new furnace dragon according to its size, whether it is weight or strength......"

"Enough!"

The dragon king roared angrily and raised his dragon claws: "I've put up with you for a long time!" Dragons aren't the kind of things you made that slump on the ground! ”

"Since it is said that wurm is not good, then follow the rules of the dragon clan! Dragon's Blood Ritual, Fight! ”