Zhang Shou almost pointed out the emperor directly, but fortunately he stopped in time and used the students of Jiuzhang Hall to cover it up. At this time, he saw that among the crowd, there were quite a few people with wandering eyes, including Lu Sanlang's two brothers, and he couldn't help but laugh.
Obviously, because of the emperor's praise for Lu Sanlang's turnaround and transformation into a genius, the eldest and second sons of the Lu family were not convinced and also went to read the arithmetic classics.
Even if, as the middle-aged man just said, it is difficult to find the Nine Chapters on the Mathematical Art among the common people these days, the Lu family must have it, otherwise where would the fat boy have read it? As for what the two brothers gained after reading it, just by looking at the fact that they deliberately avoided his sight at this time, it can be known that there are nine kinds of dragons, each with a different terrible talent for mathematics.
He smiled and continued calmly, "But after reading it, I think most people would throw the book aside in confusion. Why is it that they have the opportunity to learn, but cannot go deeper? Is it because they do not know how to appreciate the blessings they have, so they do not know how to cherish them, or is it because the author does not care whether others can understand it, so most people simply cannot understand it?"
After hearing this, the middle-aged man who had angrily accused Zhang Shou before was stunned, and then he was furious: "What nonsense! Zhang Shou, you are judging others by your own mean heart! How can you misinterpret and slander the outstanding works left by those mathematical masters who worked so hard?"
Zhang Shou was not angered by the accusation. He glanced at Ye Mengqiu and saw that he had stopped solving the problem. He didn't know whether he was distracted by the tense atmosphere or he was just not up to the task. He just laughed and said, "Those works are indeed outstanding. I would like to ask you, can you understand all of the "Ji Gu Suan Jing" that Young Master Ye mentioned just now?"
The middle-aged man who was just filled with righteous indignation suddenly choked and blushed. After a long while, he said awkwardly: "That's because I am not qualified enough, so I can't fully grasp the essence of the predecessors!"
"You can admit that you have little talent, but you are unwilling to slander the predecessors. You are indeed a kind person." Zhang Shou praised him calmly, and then said calmly, "Well, even if you can't understand everything, you don't have to belittle yourself. Because even if the Imperial College in the Tang Dynasty offered a mathematics course, the students there were not really able to study all ten mathematical classics."
"Of the ten books on mathematics, Sun Tzu and Wu Cao take one year to study together, Jiu Zhang and Hai Dao take three years to study together, while Zhang Qiu Jian and Xia Hou Yang only take one year each, Zhou Bi and Wu Jing Suan also take one year together, and Ji Yi and San Deng Shu are just studies that can be completed in conjunction with the other eight classics. However, there are two classics that are different."
"One is the 'Ji Gu Suan Jing' that Young Master Ye just mentioned. This book alone takes three years to study. As for the other more difficult book, it is the 'Zhui Shu' that Gao Yuan just mentioned. This book has been lost. In the Tang Dynasty, it took four years to study mathematics in the Imperial Academy."