Chapter 258

An equation is an equation with an unknown number X.

It is not a deep knowledge point, but a simple calculation tool.

By solving the equation, we can avoid the difficulty of reverse thinking, and directly list the equation containing the quantity to be solved.

For the application of basic equations, the most popular problem is to solve the problem of chicken and rabbit in the same cage.

Dake just said what he knew quickly, and Professor Lily realized it instantly!

She quickly said: "a similar method has been mentioned in the Gnostic Scripture, but it does not form a system. Using this method can really simplify the calculation. Although I can't use... Emmm, can you tell me more about it? "

But duck said strangely: "what is the Gnostic Scripture?"

Professor Lily: "an ancient sect worshiping geometry has probably been reduced to ashes now."

"Do you teach math?" duck said

Then he went deeper as Professor Lily asked.

"There are many forms of equations. What I've just talked about is the equation of first degree with one variable. In addition, there are quadratic equations of two variables, quadratic equations of one variable and so on, which can also form equations to solve multiple unknowns... "Remember the website novelhall.com

When it comes to quadratic equations of one variable, we have to talk about power, that is, power.

With the definition of "power", we have to mention "base", "index" and "root"

What Dake said was easy to say. Professor Lily listened carefully, and a basic model of mathematical operation was gradually formed in their communication.

The further back, the more shocked Professor Lily was.

From the introduction of the concept of "power", she found that some extremely complex calculations, after the use of "power", just like a straight road suddenly folded up, making the Qi point and the end point suddenly close!

Obviously, this is far above the concept of addition, subtraction, multiplication and division!

Professor Lily originally only wanted to set up an algorithm like "vertical calculation" from Dake, but she didn't expect to get something even better.

She thought carefully, suddenly took out the pen and paper from the drawer, wrote out all kinds of complex problems out of thin air, and then introduced the concept of "power", and then solved the equation. The whole idea was as smooth as silk, which was incredible.

"Vanity

She looked up ruddy, only to find that there was no one on the sofa.

……

In order not to go hungry to the magic history class in the afternoon, Dake chose to stop halfway, yo yo.

Looking at Professor Lily's understanding of some definitions, we can draw inferences from one instance and make a comprehensive understanding. In fact, Dake is envious. Maybe that's the real genius!

When he came to the canteen, he ordered a steak and mince pie, ate them quickly in the empty canteen, and then rushed to the classroom of the history of magic.

By the time he came in through the back door, the classroom was full of people.

As usual, Witt and Robert, who are sitting at the back door, are curious to see him. They are surprised that he came so late.

However, Witt has already had some hostility to Dakar and has given up the plan to improve his liking, so he has no answer.

Robert is not so scrupulous, on the spot said: "Hey, duck, where are you? It's only now. "

Duck turned to smile and said, "I've discussed some problems with Professor lily."

Robert“ Oh

"Is it related to the morning class?" Witt asked

"Yes." Duck nodded, then moved on and quickly returned to his seat.

Before long, the bell rang for class.

Ryan hax, a professor of the history of magic, came in on crutches

He was still wearing a broken prosthesis and limped on the way, but the look between his eyebrows and the temperament of the whole person were quite different from when he came.

Just a week of college life, he took off the strong atmosphere of twilight, and his brows also recovered some firmness.

But what attracted the students most was his almost bald head - it grew out!

"Professor!"

A knight's college student in the front row couldn't help raising his hand and said, "your hair?"

Professor Ryan hax raised his full hand and lifted it back with his dark brown bangs. "Theodore, you need to relearn politeness."

"Yes, professor." Theodore sat down, muttering.

Professor hax then said, "I just did an experiment with sister Calian. Oh, she calls that hair tonic! "

"It's a mouse..."

Dake in the last row blinked, thinking that it was better for Professor hax not to be happy too soon.

If hair tonic could be developed so easily, there would not be so many baldness among the great nobles.

However, Professor hax with thick brown hair, after shaving off his beard, is really a bit of a handsome guy.

After professor hax stepped on the stage, he continued the content of the last lesson and continued to tell the unfinished war story.

Unfortunately, when the golden generation, led by the brave and others, was active on the battlefield, Professor hax had retired because of injuries. Although he knew more about those battles that he did not personally experience, he lacked some details.

So he talked more about the early battles. At that time, mankind had no advantage. Every victory had to pay a heavy price, but the significance of every victory was also unprecedented.

But Professor hax talked about winning battles in both classes.

In this class, he seems to have changed his mind.

Fifteen minutes after class.

Professor hax said: "it's a war to win and lose. We learn from victory and from failure. The so-called history of war is also a history of sacrifice. I will always remember my comrades in arms who died, and I will never forgive those who betrayed in the war! "

He seemed to think of something, quickly clenched his fist to cover the ferocity of the corner of his mouth, then calmed down his breath and continued: "the battle of the ghost cattle tribe! That's a lament in the history of modern war. It's the first world war that almost broke up the alliance of 100 nationalities! "

The students under the stage couldn't help paying attention.

Professor hax always talks with a strong personal emotion, but that's more attractive.

Even dak couldn't help listening.

The battle to defend the GUI Niu tribe was a battle that took place in the early days of the signing of the hundred nationality alliance treaty.

At that time, the ghost cattle in the orc group called for help from the alliance.

After the urgent discussion, the alliance immediately took it as the key battle to symbolize the alliance, and sent a coalition army composed of orcs, elves, dwarves and humans to the rescue of ghost cattle.

And Professor hax is in it!

……