Introducing Duan Fei here, it can be seen that he treats Duan Fei as his own person, and Duan Fei, Biancong and Yan Xiuying have talked about a lot of related techniques on the road along the way.

Zheng Fucheng said goodbye with a smile, saying that he was going to wait for Princess Qiongyu to leave the customs, and when the princess came out of the customs, he would naturally invite the princess to come to meet her.

Duan Fei didn't mind this, and after nodding to Zheng Fucheng, he began to study the number of techniques together with Biancong and Yan Xiuying.

At this time, the research of Wei Cong and Yan Xiuying in arithmetic has surpassed the level of calculus proposed by Newton in the history of the earth, and it can be said that as long as the theory is completed, the foundation of advanced mathematics can be formally laid, and the way of arithmetic can enter the microscopic level.

When the time comes, combined with the various divine passage methods in the Kyushu world, the development of the number of magic will definitely be able to have extremely amazing changes, so that the development of society will take a big leap forward!

Due to the existence of cultivators in the Kyushu world, all kinds of great supernatural powers that move mountains and seas, it is very easy to change the heavens and the earth, but this also has a disadvantage, that is, the lack of motivation for social progress.

Anyway, if there is any difficulty, if the cultivator exerts his great powers, there is nothing that cannot be solved, and who else will conduct research on social and people's livelihood?

This has also led to the fact that the Kyushu world has always been a civilization of cultivators for more than 100,000 years, and the degree of civilization has not changed, just like a pool of stagnant water.

However, judging from the current situation, it is possible to bring about a major change in the world of Kyushu if we really start more in-depth research on the way of mathematics, and then feed the results back into society.

Such a road is the road of innovation and civilization, and if you really want to take this step smoothly, it will make the world of Kyushu usher in an explosive development!

Duan Fei and Wei Cong realized this when they were studying mathematics, and they consciously guided them on how to systematize and theorize the results of mathematics research.

The research of the Wei Cong couple had reached an extremely advanced level, and what they lacked was how to sort out the direction in the mess, and now with Duan Fei's guidance, they suddenly had a feeling that the hutch was open.

Biancong wanted to write a sutra that would pass the world, and originally thought that he would exhaust his life's efforts, but after starting to study with Duan Fei, he felt that the road in front of him was becoming clearer and clearer, and it might not be long before the sutra that could explain the way of arithmetic could come out.

Although Wei Cong does not have a long-term vision like Duan Fei, he can also feel that once he succeeds, it will definitely be an earth-shattering feat, and he will be a mortal and leave his name in the history of the Kyushu world, and he can even be ranked with those legendary characters!

If they come, Biancong and Yan Xiuying's enthusiasm is extremely high, and they are completely immersed in research, and they don't feel that time has passed at all, and before they know it, three days have passed, if it weren't for the extreme hunger, so that Biancong and his wife had to stop researching and fill their stomachs first, it is estimated that they will not necessarily study until the earth is desolate.

During the meal, Biancong had to sigh, it is much more convenient for cultivators, and they don't have to worry about the five grains, how much time can be saved for research.

Duan Fei said with a smile, cultivators often retreat and cultivate for months, even years, or decades, but they are not as free as mortals.

It can be said that looking at a problem from different angles, even the same thing can lead to different results, and applying it to the way of mathematics is also a research direction.

After hearing this, Wei Cong almost threw down the dishes and chopsticks, and he couldn't immediately study according to Duan Fei's statement, which shows how crazy he is in the way of mathematics.

But this time, he couldn't pull Duan Fei to study together, because Princess Qiongyu Lin Feiyan happened to end her retreat at this time and came to meet Duan Fei accompanied by Zheng Fucheng.

Lin Feiyan didn't have the slightest princess driver, and when he met Duan Fei in the small courtyard where Wei Cong lived, he could only turn out a few small benches from the mountains of magic models, and just sit casually.

This is the second time Duan Fei has seen Lin Feiyan, she still looks like a pretty little girl, she can be said to be a natural Lori, but her style of acting is extremely sophisticated, and her expression is like a genuine old cadre.

Such a contrast appeared in Lin Feiyan's body, but it gave her a special charm, at least Duan Fei could see that Zheng Fucheng worked for Lin Feiyan, not because of her status as a princess, but really regarded herself as Lin Feiyan's subordinate.

Zheng Fucheng has the cultivation of the soul cultivation realm, and Lin Feiyan can make him return to his heart, which shows that Lin Feiyan is indeed doing a good job and has a natural leadership ability.

Lin Feiyan not only did not put on the princess's role, but also showed absolute trust in the people around him, and when discussing with Duan Fei, he did not avoid Zheng Fucheng and Wei Cong and his wife, this attitude of completely treating them as their own people was enough to make Zheng Fucheng and Wei Cong and his wife serve Lin Feiyan to the death.

Lin Feiyan didn't sell it, and went straight to the point to Duan Fei, she invited Duan Fei in advance, because she wanted to ask Duan Fei to help and accompany her into a secret realm to try.

Originally, the time when the secret realm was opened was a few months later, but with the war in Manzhou and Haizhou, I don't know if it affected the operation of the Heavenly Dao, and the secret realm showed signs of opening in advance, and the entry time was within more than ten days.

This secret realm is kept secret to the outside world, only the Lin royal family knows about it, and it is also a trial that all the children of the Lin royal family must accept.

For the children of the Lin royal family, only after they have undergone the test of this mysterious secret realm can they cultivate to the realm of soul cultivation.

If you don't enter this secret realm, as long as you have the blood of the Lin royal family flowing in your body, then no matter how talented you are, no matter how hard you cultivate, cultivating to the Gathering Spirit Realm in the Kyushu World is the limit.

It can be said that such a secret realm is a secret realm of their bloodline for the Lin royal family, and the reason why such a secret realm exists is, of course, because of the ancestor of the Lin royal family's God Refining Realm.

As the first powerhouse in the Kyushu world to break through to the realm of refining gods, the ancestors of the Lin family gave his bloodline descendants, leaving too many legacies!

PS: Brothers and sisters, I look forward to your clicks, recommendations, favorites, and subscription support, and I thank you here!!!!!!

Brothers and sisters, I look forward to your clicks, recommendations, favorites, and subscription support, and I thank you here!!!!!!

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