Qu Jiang came back quickly, not only brought the booklet, but also all the things brought by the Qingyun Zhai kiln, not a single one, all of them were taken.

When he returned, these things were being observed and studied by the core personnel who would be in prison, and they had not even had time to start copying the ones he had arranged.

As the emperor himself said, he was a layman, and when Qu Jiang held the booklet to the emperor's desk and opened it, the emperor had no sense of the meaning contained in the sketches and lines on it.

The first thing that catches your eye is the handwriting that you can't bear to see, and then there are the numbers that are on that line and the vertical line that I don't know what's going on.

After flipping through a few pages, it was still the case, the emperor couldn't help frowning, and looked at the joyful Qu Jiang, "What's the matter with these words and numbers?" The handwriting is sloppy, the writing is disorganized, and the numbers are so confusing. These two, three, four are all piled together, and this is what you say, the unusual way of recording? ”

The emperor was unhappy, but Qu Jiang's smile remained unchanged, he leaned forward and said, "The handwriting is ugly, and the Xia family has a short time to study, which is inevitable." But digital records do have advantages, or should Wei Chen point it out to His Majesty? ”

This is the truth, even if Xia is smart, it hasn't been long since he learned calligraphy, and it's already good to write like this.

The emperor glanced Qu Jiang up and down several times before he reluctantly nodded: "Come on." ”

Qu Jiang stepped forward, and did not start from the first page, so the emperor opened this one, pointing to a string of horizontal writings: "Seven, three, six. Two inches" handwriting said to the emperor: "Your Majesty, please look, this string of numbers." ”

The emperor didn't squeak, he didn't know what to say at all.

Qu Jiang continued: "The seven hundred and thirty-six inches that Xia used to express this are two points, saying that it is to write a few fewer words, and it doesn't look messy. ”

When the emperor heard this, his expression changed somewhat, but Qu Jiang didn't pay attention to it, and then explained, "Weichen has tried, if the account books and arithmetic calculations are expressed in this way, it will be much simpler, and it looks clear at a glance." ”

The emperor was moved just now, and after listening to Qu Jiang's explanation, he looked at the strings of numbers on the paper, and it seemed that it was indeed much more convenient.

As long as this kind of writing is popularized, whether it is writing or viewing, it is indeed more convenient and faster than mixing ten hundred thousand words and so on.

The emperor was depressed, and glanced at Qu Jiang with some chagrin.

With such a simple record improvement, how many years have passed through the dynasties, why didn't anyone think of removing the words between the numbers? Instead, let a woman who hadn't read for a few days get it out in order to write a few fewer words?

Sun Congshan saw the emperor's expression and knew that the emperor recognized Qu Jiang's statement, but his face was a little uncomfortable. Is the advantage of digital records so obvious? Even if the emperor is annoyed, he has to approve?

He leaned up and looked at the booklet, and was a little dazed at first, but after a few glances, it felt much more pleasing to the eye. If he keeps accounts in this way in the future, it will be much easier for him to record and check the books later.

The emperor opened a few more pages to watch, and had to admit that if the original way of writing was used, and the person who wrote it was Xia, between these sketches and lines, I was afraid that it would be a mess earlier, and I would not be able to write so many words at all.

After reading it one after another, the emperor suddenly found a problem, "This Xia family has also studied for two years, and she has not counted the time she has been in charge of business during this period." When did she learn to calculate so complexly? ”

At this moment, the emperor's various speculations came one after another.

Among them, the most reasonable is that this Xia clan didn't know what the opportunity was, plagiarized the achievements of others, and took it for himself.

That's why there is a rare glass in the world, glass is made, and the production method and principle of clairvoyance are realized by chance, and there are also current and digital recording methods.

The emperor's face was already sinking like water, but Qu Jiang was still calm, "This, Weichen also asked the Xia family," he said, he took out a stack of papers from the rattan box and put it on the table, "The complex algorithms in it, the Xia family took it back to the Xia family, and asked his brother Xia Zixi, the gentleman of Yunshan Academy, to write and calculate it." ”

The emperor opened it, and sure enough, the handwriting on these papers was not only neat, but also very stylish. Among them, a small part of the records and calculations are traditional writing methods, and most of them are now easy methods.

Obviously, Xia Zixi, a jinshi who was not an official, felt the simplicity of the new notation after many calculations, and was impatient to use the traditional way of writing.

"Hmph, this Xia's, she will save trouble." The emperor finally found a groove in Xia Yanqing.

Qu Jiang's interest was undiminished, and he was not affected by the emperor's tone at all, and took out a stack of papers to show the emperor.

The handwriting on this is miserable, and the emperor frowned, well, this is what Xia himself wrote.

…… But what is it???

The emperor immediately stretched out his hand, took the stack of papers, examined them carefully, and read them one by one.

After a long time, he looked up at Qu Jiang: "This is calculated by the Xia family?" Don't you need to do the math? ”

Qu Jiang smiled and nodded, "Yes, if you count it like this, you don't need to count it." ”

The Emperor turned his gaze again to the stack of papers, where the calculation was a simpler method of addition and subtraction.

Different from his cognition, the calculation process jumps on the paper, and the two or three lines of numbers that need to be added or subtracted are written on the paper at the same time, and the number of digits is opposite, and they are added or subtracted separately......

"That's right, it's all right." The emperor muttered to himself, rarely, a little distracted.

Sun Congshan is the chief eunuch of the palace, and he is also literate and hyphenated, and has some bookkeeping foundations, standing beside the emperor and watching, he can't help but be speechless.

If this algorithm is indeed true, there will be no need to fiddle with those calculations in the future.

After checking many calculations, the emperor finally breathed a sigh of relief.

Qu Jiang, who was waiting for the emperor's attitude, added: "It is really the emperor's profound blessings, and the Xia family just used the laziest method, listing the equations and adding them separately, and it became a simple calculation method for adding numbers within ten." Weichen thought that if he let someone who was proficient in mathematics study, he couldn't say that he could use this method to calculate addition, subtraction, multiplication and division. ”

Saying this, Qu Jiang's face was full of yearning, "Let's do the fortifications, and the large amount of calculations will save a lot of money." ”

At this moment, the emperor seemed to have to admit that he was really blessed by heaven. Otherwise, how could a village girl get so many opportunities by mistake?

And these encounters have great benefits in the Liang Dynasty.

"Qu Jiang, you go back to review, after you get Qingyunzhai's telescope, how much silver can be saved for the development of the telescope, all of which will be handed over to Qingyunzhai and used to buy telescope technology."

"In addition, Xia's Yanqing has created a new glass industry, which not only makes the handicraft industry of our Celestial Dynasty more prosperous, but also allows countless mansions of the Celestial Empire to bathe in the sunshine. For such meritorious deeds, he deserves to be rewarded......"