Chapter 761 Trivial prerequisites

The study of French numbers and the introduction of hexadecimal only accounted for less than half of the course time.

No matter how talented the little wizards are in knowledge acceptance and numerical sensitivity, they cannot hide their gaps in basic mathematics knowledge. After successfully stimulating students’ interest, mathematics classes are gradually on track.

Compared with the backward and cumbersome “line counting method”, vertical calculation is undoubtedly a concept that must be popularized.

It’s just that the premise of vertical calculation is first of all the writing of values ​​and the familiar recitation of multiplication tables-and this is also the core and most difficult starting point in the math curriculum developed by Alexei and Elena.

Just as the size of the base of the pyramid determines its upper limit, the same principle applies in many fields.

“Okay,” Alexei said, motioning to the students to turn the textbook to the last few pages. “I believe everyone should have seen the last few multiplication tables. This is the first week for you. Homework. Learn it as much as possible, and then in class next week, I will draw back and mark it.”

“I don’t quite understand, Professor Alexey.”

Draco Malfoy raised his hand, frowned, looked at the textbook in front of him, and said in confusion.

“There are three tables with completely different sizes, but their names are all the same…”

Behind the book “Elementary Mathematics I” in front of him, there are a total of three multiplication tables attached, and each table is filled with dense numbers. Even a slight glance makes him feel confused and drowsy. The feeling of sleeping.

“Oh yes, this is what I want to say next.”

Alexei’s voice sounded in the classroom, and the middle-aged man said softly in a complicated tone.

“As you can see, there are three multiplication formula tables with different specifications on the back of your textbooks. They are 9X9, 16X16, and 26X26. You can choose any one of them to recite according to your actual situation.”

“only……”

Alexei paused, his eyes swept over the little devilish silver-haired witch right in front, and continued.

“If you choose the 9X9 multiplication table, your highest score in this course this year will not exceed’good’, and if you choose 16X16, you have a chance to get’excellent’. As for 26X26-this is just a challenge, except Let you know that you can be a little better than other wizards, and there will be no additional special rewards.”

“Hey, can you choose any one? Then we must be…”

Hearing this, Ron Weasley was instantly energetic, looking at the small watch at the front with ease.

As the “chess king” of Gryffindor Academy, Ron has always adhered to the idea of ​​being able to mix and mix. Anyway, whether it is at home, the college or even himself, he never expected him to take the final exams every semester. How many “excellent”.

However, before Ron had finished speaking, there was a sound of neat page turning around him.

? ? ? ? ?

Ron looked at the guys around with a bewildered face. Even Neville, who had always seemed a little dull, took the initiative to turn to the last page, that is, the most terrifying mathematical square, and began to whisper quietly. Up

As for Harry and Draco sitting on the other side, that’s not to mention-they had betrayed the scumbag.

“I said, Harry, Neville, did you not hear what the professor just said?”

Ron faced the small form in front of him and glanced at the watch that was almost three or four times the size next to him. He couldn’t help but twitch at the corner of his mouth, and stabbed Neville Long on his right hand with his elbow. Button, whispered.

“Even if you want to hit’excellent’, then you can choose the 16X16. For me, this final 26X26 multiplication table is probably an option for us to retreat. Instead of spending so much energy, you still Why not recite more spells or other things, at least those things seem more useful…”

At this moment, Alexei’s gaze turned towards this side, and Ron subconsciously stopped his voice.

“But I just want to try…”

Neville Longbottom looked at the dense array of numbers in front of him and took a deep breath.

“Grandma keeps saying that she wants me to stand up to the Longbottom family and don’t be jokes by others… I really don’t have much talent for spells, but this kind of thing that can be worked hard by a dumb way, I still want to try a little… ”

While speaking, Neville lowered his head again and continued to recite quietly.

“but–”

Ron sighed a little helplessly. As a child in a pure wizard family, he really couldn’t understand the meaning of this additional learning burden, what was the meaning of mathematics, and he didn’t plan to work in Gringotts afterwards.

However, if the classmates and friends around him choose this way, Ron can only…

“Sorry, Professor Alexey, I have one more question.”

At this moment, at the desk in front of the classroom, Hermione’s arms were raised high.

“I really can’t understand the meaning of the last complex multiplication table — if the table of 16 times 16 will work when we use Jin Jialong and Yin Si Ke, then the twenty-six multiplication How about the twenty-six form?”

Accompanied by Hermione Granger’s voice, the students in the classroom looked up curiously.

Alexei frowned slightly, his eyes stopped for a moment on the white-haired ball next to the girl, and then quickly stood up and walked to the “unplanned” questioner, thoughtfully Asked.

“Excuse me, lady, may I ask your name…”

“Hermione, Hermione Granger, Gryffindor.”

Hermione replied quickly, without the slightest timidity in her bright brown eyes.

“Mr. Professor, I have previewed this year’s reference textbook during the summer vacation. If it is the basic four arithmetic operations, then the nine-nine-nine multiplication table is enough. Even if the magic currency is taken into account, it will not rise so high all at once. .”

“Because… it helps to understand the hexadecimal number, dear Miss Granger.”

Alexey glanced at Elena, who was slightly nodded next to the girl, and after a little thought, explained softly.

“By the way, the reason why you are asking you to recite the 16X16 multiplication table is not just for the convenience of daily calculations, but more importantly, it will make it easier for you to understand hexadecimal vertical calculations in the future.”

“The smallest even prime number and the smallest odd prime number, the base algorithm based on them, will inevitably have its unique value.”

“As for when and how will it be used…”

Alexei shook his head, looked out the window subconsciously, and replied in a complicated tone.

“This is like the meaning of learning mathematics. To a large extent, it depends on the progress of other fields. It may never be used, or it may be used next month. But from the current situation, at least you There is hope…”

…

At the same time, it is located in the lecture hall of the “Hogwarts College Metropolis-H Research Area”.

“All in all, the precautions can be summed up as just a few items—”

“Don’t walk around randomly, don’t disclose your work at Hogwarts at will, don’t privately research fields involving magic, and if you have any questions, it is best to ask the wizard’s opinions. In addition to the above, you are free to control yourself every month The salary, flexible adjustment of their working hours. Now, let’s talk about some things other than benefits…”

Douglas cleared his throat and took out a roll of parchment from his arms, his face solemn.

“Mr. K.A. Semendev, we are very interested in your’Ternary’ number system. Therefore, in the next six months, your research content will become the highest priority in this area. Projects-we hope to see the implementation plan you submitted within this week, as well as the problems we need to help solve during the implementation process.”

“Mr. Andrei Mendanlov, starting from tomorrow, the house elves will come to your residence every morning~www.readmtl.com~ and guide you to the corresponding greenhouse and vegetable garden to complete a series of tasks. Introduced separately.”

“Arkhipovna…”

“Vinogradov…”

Hogwarts has never been a charity, and the Destiny Group will never help Muggles for no reason.

As the third-generation Dark Lord, Elena and the others have fully demonstrated their sincerity in the magical world in the past half a year.

Now, it’s finally her turn to start the “main-line mission” and ask for some reasonable labor and knowledge feedback from the most outstanding scholars in the non-magical world. You know, you want to complete what Elena expected. The “a certain scientific Hogwarts”, they still need to light up the front “black technology” there are many.

Among these, the two technological breakthroughs that Elena is most looking forward to are…

————

————

Gua! Maye kidnapper has been defeated again!