Seeing the round-faced boy Ye Mengqiu opposite him with a confused look on his face, but coming to his senses, he walked solemnly to the blackboard and looked at the question carefully, and then wrote something thoughtfully on another blackboard: "Li Tianyuanyi is a certain person..." Lu Sanlang could not help but sneer.
Are you pretending to use the quaternion method to solve the problem? Do you think I don't know what the level of mathematics is these days
You know, as the first head of the Jiuzhang Hall, I suffered a lot. When the teacher was not available, I went to find the founder Ge Yong, in order to really study the Ten Mathematical Books, because although he claimed to have read the Nine Chapters on the Mathematical Art at a young age, in fact, at his level at that time, he was still a little far from the level of understanding every question in the Nine Chapters on the Mathematical Art.
As for the other nine books among the ten mathematical books, such as the "Zhuishu" which has been lost, where can he learn it? Even the "Ji Gu Suanjing" is far from his previous level. So Zhang Shou did not follow these old tricks in Jiuzhang Hall. He often went to Ge Yong to study hard at night, from Tianyuanshu to Siyuanshu, but found that Ge Yong only knew the basics!
Thinking back to the time when he saw the first edition of Zhu Yuanjie's "Si Yuan Yu Jian" from the Yuan Dynasty at Ge Yong's place, there was a period of time when he was amazed by Zhu Yuanjie, the inventor of the Si Yuan method, but he only hated that this great mathematics scholar did not explain it in detail.
However, when he went to Zhang Garden to meet Zhang Shou privately one day, he got a new volume of manuscript of "Ge's Mathematics New Edition" in Zhang Shou's study, which had not yet been published. The main content of the manuscript was the elimination method for solving high-order quaternary equations, which was easier to understand but somewhat similar to the quaternary method. If he had not secretly learned from Ge Yong before, the fat boy would have really thought that Zhang Shou's book was written by Ge Yong.
But because Ge Yong had lamented to him that the Tianyuan and Siyuan methods were too difficult to understand, he had mentioned to him that the use of the series of digital symbol systems in "Ge's New Compilation of Mathematics" should be able to simplify the Tianyuan and Siyuan methods that ordinary people could not understand. Therefore, when he found that the elimination method described in Zhang Shou's manuscript was easy to understand, he realized who the real author of "Ge's New Compilation of Mathematics" was.
Because the symbol system is more concise and clear, the fat boy who had suffered from Tianyuanshu and Siyuanshu in the Ge family almost easily understood the essence of the elimination method. Therefore, in his mind now, the young master is on the same level as Master Ge.
At least in mathematics, the young master has surpassed his teacher. As for Zhang Shou's claim that he borrowed some foreign mathematics, in his opinion, that is nothing. If these guys were placed in front of foreign books, would they read them? Would they understand them
At this moment, seeing the round-faced boy Ye Mengqiu concentrating on solving the problem, he didn't care whether the boy was pretending or really had the ability, but said to the three elders behind him with a half-smile: "Since you all came here with this Mr. Ye, it would be boring to just sit here and watch your companions solve the problem."
"It just so happens that the first batch of students in our Jiuzhang Hall have just learned how to factor quadratic equations. Would you like to give it a try? The teacher has assigned us a hundred or eighty exercises in one go."
"Oh, I forgot that you should disagree with the mathematical symbol system promoted by Emperor Taizu and vigorously advocated by my ancestor Ge and teacher. It just so happened that I had nothing to do before, so I re-explained these 180 questions using Tianyuanshu."