I Want To Be Qin II

Time flies, gone forever.

At this time, Yingzheng issued a response to the order to seek talents, and talents who wanted to make a difference came from the six kingdoms of Shandong into the Great Qin Xianyang.

Under Tie Ying's arrangement, all of them lived in the official posts in Xianyang City. This time, Zhang Cang was transferred back for Ying Gao's discussion with Ying Zheng.

Because Zhang Cang is a math genius!

In history, Zhang Cang once revised "Nine Chapters of Arithmetic" and formulated a calendar.

Such a talent must be allowed to shine in his own position. The future Daqin will not lack the talent of the prime minister, but it will lack the talent of mathematics.

That's why he asked Ying Zheng to transfer Zhang Cang back.

...

"Young Master, today is a meeting between scholars who are proficient in Nine Chapters of Arithmetic and the almanac that expounds on Gaitian theory and the Four-Fun Calendar."

Tie Ying looked at the young man in front of him with blazing eyes. He naturally knew how much Ying Gao had paid for this matter and how much he valued it.

Therefore, he will remind.

"Prepare the car and go to the Mathematics Palace!"

After a long time, Ying Gao gave Tie Ying an order, and walked out of the study. He had once been a teacher in Sanchuan County, and now he is going to return to his old job.

It's just that compared to Sanchuan County, Ying Gao was obviously a little more excited this time, because he knew what he was doing this time.

Perhaps this is the beginning of an era!

...

"rumble……"

The car rumbled through the quiet street, and finally entered Daqin Central University. Since part of the building has been completed, this meeting was arranged in the School of Mathematics.

Ying Gao is looking forward to this meeting, after all, the people he wants to meet are basically the top geniuses of this era.

he knows

In this era, there are already Seven Strategies, Nine Chapters on Arithmetic, and monographs that later generations call arithmetic.

Especially the Nine Chapters on Arithmetic, "Nine Chapters on Arithmetic" has its own unique achievements in mathematics. It not only mentions the problem of fractions for the first time, but also first records problems such as surplus and deficiency.

In the "Equations" chapter, it also expounded negative numbers and their addition and subtraction operation rules for the first time in the history of mathematics in the world.

Ying Gao remembers very clearly that among the nine chapters on arithmetic, the first chapter "Fang Tian" mainly describes the calculation method of the area of ​​plane geometric figures.

It includes calculation methods for the area of ​​eight graphics, namely rectangle, isosceles triangle, right angle trapezoid, isosceles trapezoid, circle, sector, bow and ring.

In addition, it also systematically describes the four arithmetic rules of fractions, and methods of finding the greatest common divisor of numerator and denominator.

Chapter 2 "Corn": Proportional exchange of grains and grains; a proportional algorithm is proposed, which is called Jinyoushu; chapter Huafen proposes a proportional distribution rule, which is called Decay Fenshu;

The third chapter "decay": proportional distribution problem. Chapter 4 "Shaoguang": If the area and volume are known, find the length of one side and the length of the diameter, etc.; introduces the methods of extracting the square and the cube.

Chapter 5 "Commercial Work": earth and rock engineering, volume calculation; in addition to giving various three-dimensional volume formulas, there are also engineering allocation methods;

Chapter 6 "Equal Loss": Reasonable apportionment of taxes; using the technique of decay to solve the problem of reasonable burden of taxes and servitude. Jin Youshu, Decaying Technique and their application methods constitute a whole set of proportional theories including today's positive and negative proportions, proportional distribution, compound proportions, and chained proportions.

Chapter 7 "Insufficient Prosperity": the problem of dual approaches; three types of profit and loss problems, namely, insufficient surplus, adequate surplus and insufficient adequate, double surplus and double deficiency, are proposed, and several problems that can be converted into surplus and deficit through two assumptions solutions to general problems.

Chapter 8 "Equations": the problem of linear equations; the method of separating coefficients is used to represent linear equations, which is equivalent to the current matrix.

The direct division method used when solving a system of linear equations is consistent with the elementary transformation of matrices. This is the world's first complete solution of linear equations.

This chapter also introduces and uses negative numbers, and proposes positive and negative techniques—the addition and subtraction rules of positive and negative numbers, which are exactly the same as the number-centering laws of later generations; when solving linear equations, the multiplication and division of positive and negative numbers are actually performed .

This is a major achievement in the history of world mathematics. For the first time, it broke through the range of positive numbers and expanded the number system.

Chapter 9 "Pythagorean": various problems solved by using the Pythagorean theorem. A general solution formula for the problem of Pythagorean numbers is proposed: if a, b, and c are the hooks, strands, and chords of the Pythagorean shape respectively, then m\u003en.

...

In later generations, Ying Gao once studied Jiuzhang arithmetic. At that time, he was shocked by the wisdom of the ancients. After coming to this era, he sent people to search for it.

Naturally, he has a very good understanding of the nine chapters of arithmetic, and it is based on this that he feels that the establishment of the School of Mathematics has a certain foundation.

Among the eight colleges, the College of Chemistry is actually the one with the least foundation. The College of Physics is filled with Mohist scientific concepts. Only the College of Chemistry is basically poor and blank.

But in this era, there is never a shortage of smart people, sometimes it is just because of temporary limitations, and with Ying Gao's guidance, it will inevitably develop rapidly.

Thoughts flickered in his mind. Ying Gao had great expectations for the future of the Great Qin Central University. He believed that the fruits planted today would surely make the future of the Great Qin Empire even better.

...

"Young master, we are here!"

Get off from the car, Ying Gao said to Tie Ying: "The car is parked here, you all go in with me!"

"promise."

Although the order to seek talents this time was for capable people and strangers in the world, Ying Gao knew in his heart that there must be spies from the Six Kingdoms among them.

Even with the double screening of Bai Ze and Hei Bing Tai, there are still some fish that slip through the net, so it is necessary to pay attention to safety.

...

Walking into the school, there were more than 20 people sitting inside, of all ages, Ying Gao chuckled and stood on the podium: "Everyone, I would like to introduce myself here, Ying Gao, the third son of Daqin. "

"It is also the initiator and builder of Daqin Central University, and where you are located is the School of Mathematics. You are proficient in arithmetic, and Jiuzhang arithmetic is one of them."

"Entering Daqin Central University requires a unified assessment, and then decides how much you will be paid during your teaching period at Daqin Central University!"

"In Daqin, those who are capable work harder, and those who are able will also get more..."

...

For these people, Ying Gao is a treasure. He knows how difficult it is to cultivate a talent who is proficient in nine chapters of arithmetic.

And he didn't have that much time to train, after all, the war between Qin and Han had only lasted for more than two years.

Although he is the sacrificial wine of the Great Qin Central University, but in the Great Qin, the country is established by martial arts, and military merit is the foundation for Yinggao to gain a foothold in the Great Qin.

He will never put the cart before the horse!