176.

If it was before knowing that this arithmetic monument might know the plane he was in, Cheng Li might have hesitated whether to continue to break through.

But now, Cheng Li naturally chose to continue without hesitation. After all, this was the only way he could get information about his homecoming.

However, before making a decision, Cheng Li still asked: "How long has it been now?"

The little arithmetic boy replied accurately: "One hour has passed...... By the way, I just saw that you used a new set of units of measurement when answering the question, is it the unit of measurement of your original plane?"

"That's right. Cheng Li nodded.

"That set of measurement units seems to be more accurate and convenient, so I'll use that set of measurement units to tell you. ”

For Xiao Shutong, changing the unit of measurement is as simple as breathing, so he continued in the next second.

"It's been 1 hour, 13 minutes, and 22 seconds since you came in. ”

Hearing Xiao Shutong say this, Cheng Li roughly estimated.

He entered the arithmetic monument around 1 a.m. on June 13, so it would have been about 2:30 a.m. by now.

"Since you can use the measurement unit of my original plane, can you get me a time marker, otherwise it will not be convenient. ”

Cheng Li pondered, since it was an examination room, he should hang a clock or something.

Xiao Shutong was very cooperative: "Yes, this is not a big problem. ”

Then he casually shot out a few beams of light, and it didn't enter the monument, and soon Cheng Li saw a 24-hour time appear in the lower right corner of the light curtain where the light point fell.

"June 13, 9999 2:26:32 a.m. ......"

Looking at the time and date displayed on it, Cheng Li nodded with satisfaction.

"According to the prediction of the Star Gazing Pavilion before, the Blood Demon Island will arrive at the Blood Demon Island at around 7 o'clock in the morning on June 14th. ”

"It's about 28 hours before the offensive starts. I have to get to the 3000th floor within this time......"

Cheng thought about it, and the difficulty was not small.

Don't look at it, it only took him 1 hour and 13 minutes to pass through the first 1000 floors.

But that's because the questions in the first 1000 layers are relatively simple, and most of them are content in junior high school math and high school math, so it's quick to do.

And from the 1000th level, marked by calculus, then a watershed will be formed.

In other words, after the 1000th floor, it will be all content of advanced mathematics, and further later, I am afraid that there will be some content related to the frontier fields of mathematics.

If we say that before the 1000th floor, it was the content of the European Middle Ages and ancient Chinese mathematics.

Then after 1000 floors, you will enter the content of modern mathematics and modern mathematics.

In modern mathematics, the difficulty is not ordinarily large, and even Cheng Li is not sure that he can pass it quickly.

At least not as easy as the first 1000 floors.

Therefore, Cheng Li still has to estimate the time and see whether he can go up to the 3000th floor within 28 hours, or whether he can go up to the 3000th floor is still a question.

"However, maybe 3000 layers are a bit difficult, but 2000 layers should still be fine. I could wait until I got to the 2000th floor and see the rest of the time before thinking about it. ”

After making a decision in his heart, Cheng Li said to the calculation boy: "I will continue to participate in the trial." ”

Shuan Tong looked at Cheng Li and said, "You are quite confident, I want to tell you, although this question bank is from your original plane." But a plane does not contain more than just a civilized race. Unless your civilization has reached an extreme level of arithmetic, once the question bank reaches a certain bottleneck and your civilization's arithmetic level cannot keep up, the question bank will automatically switch to a civilization with a higher level of arithmetic and use a new question bank. ”

Cheng Li probably understands the meaning of arithmetic children, and every 1,000 floors of this arithmetic monument can be roughly divided into a mathematical level range.

That is to say, every 1,000 floors, there will be a qualitative improvement in the mathematical problems selected by the arithmetic tablet.

As Cheng Li just summarized, the first 1000 layers are the content of junior high school and high school mathematics, and the 1000th to 2000th floors are probably the content of advanced mathematics.

As for the 2000-3000 layers, I am afraid that it is already the content of modern mathematics on Earth.

Assuming that the level of modern mathematics on the earth only reaches the level of the 3,000th layer of the arithmetic monument, then after the 3,000th floor, the students will be selected from the earth to other civilizations and technologies with a higher level of arithmetic to be included in the question bank.

This is the same as the content of ancient Chinese arithmetic before the 500th floor, and after the 500th floor, because the development of ancient Chinese arithmetic has stagnated, the question bank has been replaced with the European mathematical system, which is the same reason.

According to Xiao Shutong, this arithmetic tablet is a collection of the arithmetic scriptures of countless races and civilizations in the heavens and worlds, which after the arithmetic of a civilization has developed to a bottleneck, it is undoubtedly a very simple thing to switch to other civilizations to enrich the question bank.

Xiao Shutong is equivalent to reminding Cheng Li not to be complacent and give Cheng Li a little hint.

"Thank you, I'll take note. Cheng Li smiled kindly at Xiao Shutong, but still walked firmly towards the stairs on the 1001st floor.

As a result, Cheng Li began a new round of answering questions......

The 1001st layer is still a problem related to calculus, which is not very difficult for Cheng Li, and Cheng Li quickly passed.

But it is clear that the further back Cheng Li goes, the longer it will take to pass through each layer.

Before the 1000th floor, it took 7-8 seconds for Cheng Li to pass through each floor.

And now Cheng Li has to spend at least 20 seconds to answer a floor question.

Sometimes it takes several minutes to encounter something that makes Cheng Li feel quite a headache, needs to be recalled carefully, and even needs to deduce the proof by himself. Fortunately, there are not many such topics.

Then Cheng Li found that from the 1000th layer to the 1499th layer, there were 500 layers of questions, all of which were answering questions related to calculus.

It seems that calculus is also an extremely important watershed in the level of arithmetic formulated by the arithmetic monument, occupying an extremely important weight.

Cheng Li didn't know that in the arithmetic system demarcated by the arithmetic tablet, calculus is no less important to arithmetic than the significance of human beings drilling wood to make fire.

Humans mastered the use of tools by drilling wood for fire, which was a crucial step in the transition from primates to intelligent life.

And the invention of calculus, or the discovery of calculus. For human beings, it is not just a mathematical tool to master, but also a kind of liberation of human thought and even science.

If it is said that when human beings explore natural science, they are in the dark at the beginning, and they can only discredit the exploration. The advent of calculus gave mankind a torch for the first time, which could illuminate the way to explore natural science.

As Engels said, the creation of calculus was the highest spiritual triumph in the history of mankind.