On the vast road, a huge convoy was slowly advancing.

The leader was a guard of honor composed of sixteen chariots.

Hundreds of fully armed cavalrymen followed like shadows, guarding both sides of the convoy.

In the center, there is a luxurious cart, pulled by four horses and walking steadily on the road.

Brocade covers the interior of the car body, and two maids, holding fruits and refreshments, kneeling on both sides of the car, making it easier for the owners who sit in the car to enjoy it at any time.

"King, you're about to arrive in Luoyang..." A general wearing armor rode his horse to the car and reported.

"Oh..." The man who had been sitting in the car and was constantly eating various fruits and vegetables nodded, then stood up, as if he was an iron tower, and his strong body could make the weightlifters in later generations feel ashamed.

"Are you going to Luoyang?" He held the sword around his waist and said, "The last time I went back to Chang'an was three years ago..."

"I really miss it..."

Perhaps because he thought of something interesting, he stretched out his hand and asked his left and right: "By the way, I heard that a Shizhong official recently appeared in Chang'an City, claiming to be unstoppable?"

An eunuch in brown clothes heard this and reported: "Reporting to the king, there are indeed relevant rumors. It is said that the Shizhong was surnamed Zhang, and after he stayed, his Majesty liked him, and he praised him and promoted him to Shizhong... A month ago, the old Shuiheng Commander pointed directly at the embroidered envoy Jiang Chong, who ordered the assassin, and wanted to assassinate the Shizhong, but was killed by his bare hands and captured..."

The strong man listened, his face filled with joy: "So, I can have fun when I go back to Chang'an this time!"

He seemed to see the tiger leopard and brown bear raised in Shanglinyuan.

Maybe I might meet a confidant this time.

"King..." The eunuch looked like he wanted to speak but stopped. He seemed to have something to say and dared not say it directly.

"What?" the man asked with a majestic look on his face: "Is there any problem?"

"I heard from the king that Zhang Shizhong, I heard that the minister Zhang, known as "Zhang Chiyou", has always been favored by the emperor with his courage and domineeringness. He once said to others privately: Even if King Guangling is here, I will capture him like a woman tied up!"

"Really?" The man's face immediately turned red and his anger was as angry as a burning person.

"I just heard it, I can't guarantee it..." The eunuch said in fear and trepidation: "However, I heard about this from several nobles in the palace..."

"How dare you belittle me?" The man's hand, holding the hilt of the sword tightly, actually left a deep mark on the hilt of the sword!

At this moment, in his heart, his anger was as hot as magma.

He may not care about women or gold in his life.

But no one can underestimate or insult his force!

"When I arrive in Chang'an, I want to see your courage. Can I capture me?"

Listening to his words, a smile appeared on the corner of the eunuch's mouth.

It's so simple!

Just one sentence can anger this king!

However, over the past few years, haven’t everyone fooled him over this?

If you want this king to hate, just say in his ear that this person looks down on his force.

This king will start to attack like a furious boar.

……………………………………

Almost at the same time, a convoy of the same size was sailing on the Avenue of Zhao State.

Surrounded and protected by the army, a middle-aged nobleman was buried in a large cart on the table, holding a ruler and working patiently on a circle.

He worked so carefully that he turned a deaf ear to everything outside.

It was not until a long time that he finally smiled and sucked his hands and said, "It's true! After 192 equal divisions, the pi should be three.14..."

"Zhang Shengzhen is a genius in mathematics and techniques!"

"This time I enter Beijing, I may ask in person, please teach the method of abacus, or even the more advanced arithmetic..."

For him, his entire life now only pursues one thing and arithmetic.

As for power and great achievements, it is not within his consideration.

The reason is very simple. His relationship with the current prince is very deep.

Although the two are not brothers of the same birth, they have similar personalities and are both of them who are quiet and kind.

The only difference is probably that the prince likes literature, while he is addicted to mathematics.

Since he was granted the title of Jicheng in the north and called himself a widow, he has devoted all his resources to collect and collect arithmetics and arithmetic books around the world, and established a paradise for arithmetics in that frontier far away from the Central Plains.

In Yan State, it doesn’t matter if you can’t write articles.

As long as you have good mathematics, you can still live a life of luxury.

Although Yan State is bitter and cold, the King of Yan is endless!

Just relying on monopoly on fur trade with Wuheng, Yan State earned thousands of gold every year.

Therefore, all arithmetics in the world know that there is no food or clothing, and the King of Yan will give it to us; there is no girl or concubine, and the King of Yan will prepare it for us.

Nowadays, King Yan is the hope and hope of mathematicians all over the world.

Yan State has thus become the most intense and developed place with the Han Dynasty's mathematical atmosphere.

This atmosphere even affected the scholars of Yan State, Yan State, and the scholars and officials of Yan State, who have been famous all over the world for their proficiency in arithmetic in recent years.

The reputation and image of Yan State were gradually reversed, from the bitter and cold country in the past to the place where the people were unkind, they became today's "macross holy land".

As a monarch who studies wholeheartedly and is obsessed with mathematics.

This king's arithmetic level is naturally not bad.

He can even be said to be an outstanding top arithmetic!

Even his favorite concubine, Mrs. Huarong, is a top female mathematician. The couple sang and married each other, creating a good atmosphere of respect and attention to mathematics in the north.

He even began to expand his research object from pure mathematical geometry to fields such as astrology.

"The king... a guest from Chang'an asked for a meeting..." At this time, a eunuch came to the car to report.

"Chang'an Guest?" Liu Dan narrowed his eyes. He had never been involved in Chang'an affairs. Every time he entered the court, he basically did not interact with ministers from the foreign court (this is because there is no need, and he could not have a chance to inherit the throne. Although he is the third brother, his mother's status is not high and the foreign tribes are powerless. Even if the prince falls, it is not his turn to that position).

But now, a Chang'an visitor has inexplicably emerged to approach him.

What does he want to do?

Liu Dan shrank his neck and subconsciously remembered countless tragedies in his family's history.

So he asked, "Who is the guest?"

"He is the son of Guangluxun..."

"The son of Han..." Liu Dan turned his eyes and waved his hand, "Go and tell the guest, just say that I am sick today and it is inconvenient to meet. Let's talk about it another day..."

Although he has been studying mathematics, he has not been concerned about the government affairs.

In fact, he cares about the government affairs more than anyone else!

Because, now he only wants to keep climbing on the peak of mathematics.

But this requires a stable and peaceful environment, and the changes in the government are directly related to the stability of the world.

So, he knew that the atmosphere in Chang'an City seemed a bit strange now.

Under such circumstances, Guanglu Xunhan said that he sent his son to his way to Chang'an to intercept him.

There must be nothing good.

I'm afraid I either want to play conspiracies or put a trap on him.

He is not that stupid!

"But..." the eunuch said: "The guest said that if the king doesn't see him today, he will definitely regret it in the future!"

"Repent?" Liu Dan blinked. Is this threatening him?

The third son who threatens to be today's son, the King of Yan of the Han Empire?

Do you really think mathematicians are easy to bully?

Although Liu Dan likes quietness, he was the King of Yan for twenty years and was inevitably infected by the customs of Yan.

There is such a stubborn smell in my bones.

"Go and tell the guests..." He stood up and said, "I never regret it in my life!"

"No!" The eunuch took the order and left, and came back in a quarter of an hour later. He bowed to Liu Dan: "King, the guest said that he had fifteen volumes of bamboo slips collected by Zhang Cang, the Marquis of Wen of Peking..."

"Ah..." Liu Dan immediately said, "Hurry up and invite you!"

During his years in Yan State, he has been determined to collect and organize any words and bamboo slips left by Zhang Cang, the man in Peking.

Because Zhang Cang was the strongest arithmetic master in history in the Han Dynasty and a recognized master of mathematics in the world.

Naturally, his treasures and books written by himself were priceless in Liu Dan's eyes.

A moment later, a young man was taken to Liu Dansheng, who was under heavy protection.

"My dear Han Zeng, please pay a blessing to the king!" The young man looked very handsome and looked quite as powerful as a father and ancestor.

As soon as they met, he ordered someone to send Liu Dan fifteen volumes of bamboo slips kept in a wooden box.

"My father heard that the king likes to arithmetic, so he specially collected Wen Hou's works with great money to serve as a wise king!"

After taking these bamboo slips, Liu Dan immediately fell in love with them, as if he had met a peerless beauty.

For a mathematician, perhaps mathematics itself is a world that is always full of novelty and stimulation.

Everything he wants can be obtained from this world.

In this case, other things become less important.

"Guang Luxun is really too polite..." Liu Dan knew that if he missed them, it would be difficult for him to meet again in his life.

But……

Who is Guanglu Xunhan? He doesn’t know yet?

That is famous for being 'scheming'.

Such a person suddenly sent a son to give him such a precious thing. Could it be that he just came to sell it?

If you give rituals, you will definitely ask for something!

"What kind of instructions does Guangluxun have to let you convey?" Liu Dan asked carefully and vigilantly.

He couldn't help but be careful.

Just because he is the King of Yan, it is enough that he has deep doubts and speculations about all those who are deliberately close to him!

Because, before him, the Han family had as many as five genealogies of the King of Yan.

And all of these five genealogy will not die well! (Zang Tu rebelled, Lu Wan betrayed, Liu Jian was killed by Empress Lu, Lu Tong was killed by ministers of the princes, Liu Ze was finally passed down for three generations, and it was gged)

He didn't want to become the sixth one at all.

To a certain extent, he was addicted to mathematics and also had this consideration.

It can't be said that even a King of Yan who is addicted to mathematics can make a taboo, right?

"My father ordered me to come to see the king because I wanted to get help from the king..." Han Zeng bowed his head and bowed.

"What's the matter?" Liu Dan became even more cautious. Even Guangluxun couldn't handle things. Let him come? There is no problem here, ghost trust!

"My father had a gap with the prince's servant, Li Yu. Now Li Yu wants to be the minister of the ranks. My father wants to ask the king to make a statement in front of the emperor at the right time to stop Li Yu's promotion..." Han Zeng paused his head and bowed.

"That's it?" Liu Dan was a little disbelief. Han said that he sent his son to come so far, just wanting to say a few bad things about Li Yu in front of his father?

Is there such a simple thing?

"How dare I deceive the king?" Han Zeng kowtowed and bowed: "That's all!"

"If the king can promise, even if the matter cannot be accomplished in the end, my father will thank him very much..." Han Zeng said: "I will not hide it from the king. My father is close to the minister Zhang Zizhong. If the king can agree, my father is willing to recommend Mr. Zhang..."

After hearing this, Liu Dan was finally moved.

That Zhang Zizhong Zhang Shizhong is a powerful person who has cracked Pi!

The theory of round cutting and density proposed by him opened the door to a new world in Liu Dan's heart.

The abacus and abacus he created and invented made him even more ecstatic, and he got it like a treasure.

He had long wanted to have a good private conversation with such a sage.

But the other party was the attendant, so he didn't dare and couldn't take the initiative to meet in private.

Now, Han Zeng's proposal was like a devil's whisper, which made him finally nod and said, "Since that's the case, I agreed..."

It was just that my father was looking for an opportunity to say something bad about Li Yu, and there was no big problem.

Even if there is, he can change his mind!

Han Zeng listened, but was very happy and felt relieved.

Everything goes well here, and I believe that it is almost the same for King Guangling.

In this way, King Yan and King Guangling all fell into their father's plan.

There are two kings who are willing to be chess pieces, but are they afraid that one Zhang Zizhong will not be able to deal with?

Not to mention, there is also a Changyi King!

Unlike King Guangling and King Yan, King Changyi would definitely be hostile to Zhang Zizhong if he didn't need his father's efforts.

The reason is very simple.

The teacher of Changyi King Liu Feng and the Grand Tutor Xiahou Shichang are his own people!

With this old man here, Liu Feng will definitely hate Zhang Zizhong.

In this way, all three kings are enemies.

As long as you operate well and nothing unexpected happens, Zhang Zizhong will not survive this winter!

He will definitely die.

You must die too!

If he doesn't die, the problem will be troublesome.

Zhi Jinwu has tracked down some sensitive problems and found some evidence.

If you continue to check, you may lose the old truths of many people.

The only thing that can prevent Zhi Jinwu from continuing to investigate is to kill the Shizhong official who caused all these changes.

As long as he dies, the emperor will probably have no interest or interest in pursuing it.
Chapter completed!