
“Hum” After walking into the library, Yun Xi found that the library wasnt small at all.
Looking at it from the outside, it was just a threestory wooden house, but its inside was incredibly wide.
“Is its inner space expanded by magic” Looking at the over tenstory spiral staircase and the aisles amongst one bookshelf after another, it couldnt be just a threestory house.
Moreover, there was a light curtain covering the entrance of the basement, which meant that there was a wide space under the ground too.
Yun Xi drew out the shell and touched the light curtain, just like what happened when he touched the magic circle of the girls dorm, this light curtain straightly disappeared.
Apparently, the Sky Swords token could be used here too.
However, he wasnt going to go to the basement now.
He was just looking for some beginner books.
Geography, astronomy, history… math! Yun Xi found the books he needed on the third floor.
The beginner books to learn Yun Hais Quadrant Sword were just some basic math books.
However, dont look down on them.
They were the cornerstones of math, the base of calculating.
“Well, let me borrow more books.” After finding “Nine Chapters on Mathematical Art” and “Geometrical Principle”, Yun Xi picked up several other books on the bookshelf.
“Probability Calculus.”
“Introduction to Calculus – Even a Monkey can Understand it!”
“Theory of Real Number.”
The five beginner books were what Yun Xi was going to read as the introduction to mathematics.
After picking up the five books, he looked at the books on the top of the bookshelf.
Immediately, he felt that he might be a monkey, because he didnt understand the titles of the books at all.
“Is the Cat Dead or Alive”
“I Will Kill that Damned Cat!”
“The Ghost Cat of Mathematics, Two Theories about the Question of Yun Hai the Sky Sword.”
“36 Proof Techniques to Verify if the Cat is Dead or Alive.”
“Its Wrong to Torment the Cat!”
“I Will Eat that Cat!”
“I Dont Believe this Theory! I Prefer to Believe that Cats never Exist in this World!”
“Yun Hai, F**k You and Your Cat!”
A pile of books all referred to a mysterious cat.
Looking at the names of the authors on the books, Yun Xi found almost all the names of the top mathematicians he knew, including a dragon, and someone was directly cursing Yun Hai the Sky Sword in the title.
It seemed that all the mathematicians all over the world were in a towering rage when referring to the cat.
“It must be a very strong cat!” Yun Xi thought.
It seemed that Yun Hai was the first person who put forward the theory about the cat.
He had a feeling that if he wanted to master Yun Hais Quadrant Sword, he would have to face that cat sooner or later.
…
Deep In the night, Yun Xi lay on his bed with a painful look.
“Its too difficult to understand the content of the books! Are they really just the basic knowledge to learn Yun Hais Quadrant Sword” Yun Xi didnt expect that it was so hard to study mathematics!
He just read “Nine Chapters on Mathematical Art” and “Geometrical Principle”, and they had made him fall into the endless computation of infinite loops.
Because he was already a hero ranked Baker, his strong hero ranked mentality helped him a lot.
At the hero rank, his computation speed was hundreds of times faster than ordinary people.
He could calculate Pi to hundreds of decimal places and instinctively kept calculating.
To ordinary people, it wouldnt be a problem because humans would instinctively give up thinking about the thing that was beyond their computing power.
But to Yun Xi, he just couldnt turn a blind eye to the formulas!
Whats the limiting value of this angle Whats the threshold of this unknown number Why did the computation fall into an infinite loop
Before he went to the sword palace, he only learned add, subtract, multiply and divide because he needed to record the income of his familys bread shop every day.
The four fundamental operations of arithmetic were sufficient for him at that time.
After studying the knowledge in “Nine Chapters on Mathematical Art” and “Geometrical Principle”, he finally understood how hard the real mathematics was.
It was a “Tao” that could explain everything in the universe.
“Mathematics” didnt stand for truth, because it was a process that was used to pursue the truth of the universe.
From mathematics, people could sum up the nature of astronomy, physics and even the world itself.
It was a wisdom that applied to every place in the entire gods domains, which was sufficient to be the core of the godlike sword skill, Yun Hais Quadrant Sword.
“How did Yun Hai create his sword skill by using math It makes no sense!” Yun Xi only felt awe about Yun Hais wisdom.
He was sure that Yun Hais Quadrant Sword wasnt possible to be mastered by ordinary people, because only the best geniuses of math could learn its basics after endless failures.
Compared to Hua Huos Sky Flying Sword, Yun Hais Quadrant Sword seemed to be easy to study, however, it was actually more difficult than any sword skill Yun Xi had ever known.
It seemed that everyone could learn the basics of Yun Hais Quadrant Sword by reading “Nine Chapters on Mathematical Art” and “Geometrical Principle”, unfortunately, it was just a delusion.
Even Yun Xi, whose computation speed was hundreds of times faster than ordinary people, felt the strain of learning the basics of Yun Hais Quadrant Sword, not to mention other people.
Perhaps Yun Hai was a real super genius of math, just like Hua Huo was a super genius of sword.
“No, I should stop calculating!” Yun Xi pressed his hands on his head.
It wasnt a sword skill he could learn now.
He even doubted that Yun Hais understanding about math had entered the legend rank when he created this sword skill.
Only super geniuses of math could learn the basic of Yun Hais Quadrant Sword, as for when could they master it Only god knows.
“Nah, forget it.
Lets me try Teacher Casinas gift first.” With a sad look upon his face, Yun Hai touched the shell in front of his chest and gave the words.
“Open for me, the Sky Tower!”
