Xu Ping's various novel facilities in the house, others want to learn and ask Sun Qilang to do it, with this, he has met many people and made a lot of money. Yan Su naturally knew www.biquge.info of the pen, not only did he know, but he also made things with him.

Sun Qilang stepped forward to salute, and took this opportunity to sit on the next stool.

To meet the guests today, Sun Qilang deliberately changed into official clothes. But I don't know what's going on, wearing this dress, Sun Qilang feels all kinds of uncomfortable. Maybe he's just a toiler and can't enjoy it.

A few people were sitting and gossiping, and before they knew it, the sun was rising, and Chu Yan and Jia Xian finally rushed over.

The two brought a teenager over, named Wei Pu, eighteen years old, who looked like a tiger-headed and looked like a simple teenager. However, the eyes looked a little strange, squinting all the time, as if they couldn't open them.

After Jia Xian's introduction, I realized that this young man turned out to be an arithmetic genius, especially proficient in mental arithmetic. No matter how complicated addition, subtraction, multiplication and division, as soon as others say it, they will instantly calculate the answer in their hearts.

Xu Ping made a telescope and put it in Si Tianjian, and obtained a large amount of data that could not be observed before, and the existing personnel could not cope with it, so he asked for talents from all over the world, and Wailang, a member of Tuntian in Chuzhou, recommended this person.

Wei Pu was born in poverty, but he was extremely talented in arithmetic, but all such books will never be forgotten after reading them once. However, in this era, there is no advanced level of arithmetic, and no matter how talented Wei Pu is, he can only stay in the countryside.

When he arrived at Si Tianjian, Chu Yan was shocked when he saw it, and he took **** with him and taught him what he had learned. Xu Ping wanted to find a talent to make a new timekeeping instrument, and if it was done, it would be a credit, so Chu Yan discussed with Jia Xian and brought this young man over.

Although making a new clock is Xu Ping's personal behavior, and he bears all the expenses, this kind of instrument has a great impact on the country, and it has really become a dedication to the imperial court, and naturally there will be rewards, and those who participate will also make meritorious contributions.

Since ancient times, China has always paid attention to the unity of heaven and man, and the time to obtain heaven is an extremely important thing, and it is by no means comparable to the standard time set by later generations.

Xu Ping looked at this tiger-headed young man, his eyes kept blinking and blinking, it really looked a little weird, his heart moved, and he asked him: "Look at your eyes seem to be inconvenient, I don't know if there is any eye disease?" ”

Wei Pu stepped forward and saluted: "Return to the officials of the system, the little one is studious since he was a child, but whenever he gets a book, he can't rest if he doesn't read it in one go." I was frugal, I bought oil to light the lamp and read a book, and after a long time, I thought it was so smoked that I fell into such an eye disease. On weekdays, if you are far away, you can't really see anything. ”

Where is this smoked, it is obvious that he often reads and writes in dim light, and his eyes are short-sighted. In this era, the characters printed in the books are large, and they are used to holding it in their hands, and there are not many people who are short-sighted. As far as Xu Ping knew, among the many scholars he knew, only Ouyang Xiu had a slight myopia, which did not affect his daily life. This Wei Pu turned out to be the first severe myopia he had seen in this era.

In Xu Ping's previous life, for many people, myopic glasses were almost a must-have, and once they took off their glasses, life was simply impossible. This is not the case in this era, where reading glasses are much more useful than myopic glasses. Xu Ping made reading glasses and sold them in the Sansi shop, but he didn't even think about myopic glasses.

Wei Pu looked at Xu Ping, his eyes narrowed into a line, and he kept blinking.

This is really a bit undignified, Chu Yan on the side was afraid that Xu Ping would be unhappy, so he hurriedly said: "To be controlled, this child is in good health, but his eye disease is difficult to treat." He sees people like this, otherwise it will be difficult to see clearly, and it will be strange to be controlled. ”

Xu Ping smiled: "It's okay, I'm also a patient, and I know the distress of being sick." However, this kind of eye disease is not necessarily incurable, so think about it more in the future. ”

Chu Yan responded in his mouth, but he didn't go to his heart. Wei Pu's eye disease doesn't know what the disease is at all, I've seen it with a few well-known Lang Zhong, but I can't tell where the disease is, how to treat it?

Xu Ping didn't say anything, he couldn't be sure that Wei Pu was severely myopic now, and after the myopia lenses were made, let him try it. Reading glasses can be sharpened, and craftsmen in the glass business can also grind myopia glasses. However, looking at the degree of myopia in Wei Pu's eyes, I don't know what the myopia lenses used are going to become.

Because there was still a Guo Jian who didn't arrive, and he wasn't busy talking about business, Xu Ping casually asked a few questions to test Wei Pu.

Originally, Xu Ping didn't care much, in this era, he was proficient in arithmetic, but after all, due to the limitations of the times, he still solved some simple mathematical problems. For Wei Pu, Xu Ping just thinks that he is just faster than others.

Where did he think of it, addition, subtraction and division, Xu Ping came out to the thousands, Wei Pu still looked down and thought about it, and immediately said the answer.

Addition and subtraction, four-digit multiplication and division, there are no various quick calculation skills in this era, and Wei Pu can even shout the correct answer in one bite.

The more Xu Ping listened, the more frightened he became, could it be that he really met an arithmetic genius today? You didn't give up, so I simply didn't test addition, subtraction, multiplication and division, and asked him some simple equation questions. Most of the traditional arithmetic books use examples to explain mathematical problems, which are the application problems of Xu Ping's previous life when he was in school. In this kind of example, it is common to use equations.

As soon as Xu Ping asked, Wei Pu immediately gave the answer.

In the end, Xu Ping simply came up with some problems with one-dimensional quadratic equations. Wei Pu was really stumped all of a sudden, lowered his head and thought for a while, and tried to report a number.

Xu Ping's mental arithmetic ability is only average, he can still calculate the answer to the first equation in his mind, and the second equation will not be able to do mental arithmetic no matter what. Originally, it was just difficult for Wei Pu to try his limits, but I didn't want him to be able to give an answer.

Seeing Wei Pu blinking and looking at himself seriously with a pair of eyes that he couldn't open, Xu Ping was really a little embarrassed, and he couldn't judge whether this answer was right or not.

Looking up, seeing that Yan Su, Chu Yan and Jia Xian were also looking at him seriously, Xu Ping smiled embarrassedly: "I'm not good at mental arithmetic, right or wrong, I still have to do hand calculations." ”

Yan Su sighed, thinking that Xu Ping had actually improved to this extent.

Chu Yan has a plan with him, this is the guy he eats, and he must not leave. Take out the calculation chips, set them on the stone table, and after a while, the answer will be calculated.

Although Xu Ping is not proficient in arithmetic, he can still use it now. His eyes swept casually on the table, and he raised his head to look at Wei Pu in front of him, his face had changed.

Even a one-dimensional quadratic equation can be mentally calculated in a short time, what kind of monster is this Wei Pu? (To be continued.) )