In the midst of scolding, homework still needs to be done. Chen Jixiu's version was spread out on the table, and from the desk, he took out four exercise books.

Four thick exercise books, pressed on the table like bricks, Yang Fan was startled, it was too exaggerated, but he didn't speak, the two of them were very serious, don't bother for the time being.

However, his heart is even more cold, it is so difficult to score points in the first and second years, can the so-called ten-year plan really keep up? He is a little lacking in confidence, and it is better to have other faster methods.

"Which one to start with?" said Su Junan.

"Lao Xie, after all, it's my Shuimu's person, and I have to give three points of face first. ”

This is a book of exercises with a blue book cover, and the cover reads Xie Huimin.

Five minutes later, Pan Zhe threw the pen, rubbed it and jumped up, and shouted hideously: "Fuck Lao Xie, I don't have an answer to a question." There's the answer to the last step, obvious, fuck you're obvious. ”

These four words, showing off their IQ nakedly, slapped Pan Zhe's face. Xueba's face is swollen, this is ridicule and malice.

He was so angry that he kicked the stool hard with his feet.

"Calm, calm, Pan Zhe. Su Junan quickly stood up and straightened the chair, pressed his hands on the shoulders of the angry classmate, pressed it to its original position, and said, "If you can't do it, change it, let's take a look at Pei Liwen's." ”

After venting, the matter is over, and the homework will continue, Pan Zhe adjusted his mood, nodded to his classmates, and said, "Okay, I heard that Lao Pei's exercise collection has a very high evaluation." ”

"Lao Pei's book is not good at all, a bit unfathomable, and others say that it is a necessary medicine for graduate school entrance examinations. Xie Huimin's book bar can follow the progress of the textbook, the difficulty is low, the only thing is not good, there is no answer. ”

There are four exercise books, Su Junan pointed to the other two and said: "Xu Linlin, the disadvantage is that there are too many symbols, there is less explanation, and there is absolutely no text where you can use symbols. As for Zhou Minqiang, the answer to the shortcomings is too brief, and he will trick people more than Lao Xie. ”

"A book, counting this hanging thing, never a student said it was simple, there must be something wrong. Pan Zhe lamented, no matter how much he complained, he still had to do the question for the sake of that certificate.

Yang Fan, who was looking at the web news, actually paid attention to the movements of the two, and heard several unfamiliar names in a row, a little confused.

It is an exaggeration to ask for four reference workbooks for just one lesson.

"Is it true that high math is useless in life?"

Yang Fan has also heard that high mathematics is used in the field of computers, and it is more useful in cutting-edge science.

Ordinary people don't need programming to access computers, they just need to be able to operate software. As for cutting-edge science, what does it have to do with the people?

As he pondered, he clicked on the software web page and so on, thinking about where it might be used.

XP system, click to the mapping software, suddenly my heart moved.

"Who's to say it's useless? Linear algebra isn't being applied to Windows graphing. ”

Line generation, his proficiency has been brushed to more than 60, including about the matrix content, because of the test of the galaxy array, he also deliberately brushed many times, and he is very familiar.

Thinking of this, he opened the Fit search and came to the line bar.

Log in to his account, and an ID name is displayed in the upper right corner of the webpage, which makes him a little ashamed - the big scientist Big Big Wolf.

Once, he also passed the second middle school, when he was a child, he happened to be happy and gray wolf, and he had no love for the little clever Xiyangyang, and the old village chief was too ugly.

But the gray wolf with a criss-cross scar on his face is particularly fond of it. The gray wolf is determined, and in order to catch sheep, he has invented countless unbelievable black technologies.

In the end, each time it ended in failure, but it was noticed by Yang Fan, who aspired to become a scientist when he was young.

"The Big Big Wolf operation has never been successful, but the black technology he invented, not to mention the sheep village, the earth can be destroyed many times. There's even a time machine and so on, and there's a bomb in the sky. In the field of applied physics, Hawking was thrown a few streets away by him. ”

Now is not the time to make memories, he browses the Tieba web page and flips through it at will.

"Great God, ask for an answer to this question. ”

"Is this the right thing to do, who will help me to see. ”

"The highest order non-zero. ”

"May I ask who has a video of Dr. Monkey loving to lecture on linear algebra, kneel and beg. ”

Most of the posts are asking for help, a small number of academic exchanges, and there are even ice and snow naked 360 degrees Thomas whirling and begging.

Yang Fan muttered in a low voice: "Sure enough, the high number hits people, the two senior generations around me are no problem, I thought that the senior generation is medium difficulty, but it turned out that I ignored the two college entrance examination overlords, and Teacher Feng was not wrong." ”

At this time, he was not interested in solving the problem of others kneeling naked, and when he thought of that inspiration, he immediately opened a new post:

"Some people say that the line generation is boring, and the equation matrix is useless, and today I have an occasional gain, so I will share it with my brothers.

Send it directly, paste it Yang Fan is very slippery, and many people like to become the title party on the first post.

"Sit back and wait for Brother Wolf Amway. ”

"It's a great class, brothers, copy guys. ”

"It's time for the live broadcast, come on. ”

......

The popularity of the post bar is okay, and someone posted it before the post ended, and the cold male god pinched his chin and said secretly: "Look at your gang of slings who are thirsty for learning, Brother Wolf is here to show off his IQ." ”

Resume your own post, writing: "Windows mapping software, everyone may not have used it, but certainly knows. In fact, this mapping software contains a line generation that can be rotated 28 degrees."

"Yes, you read that right, you can rotate a two-dimensional picture 28 degrees, and you can directly operate it in the software, which is very simple. ”

"Wow, master, sit and wait. ”

"I haven't heard of it, I play soy sauce. ”

......

The post continued: "In the early small image editing software, considering the limitations of time and space, coupled with the difficulty of the algorithm itself, many seemingly very simple functions could not be realized, only allowing users to rotate the selected content by 90 degrees, 180 degrees or 270 degrees, and did not support any degree of rotation. ”

Select a random area of the diagram, select "Image" → "Stretch/Distort" on the menu bar, and then fill in an integer between -89 and 89 in the "Horizontal Warp" field...... First twist horizontally by -14 degrees, then vertically by 25 degrees, and finally horizontally by -14 degrees. ”

It's that simple, and why? It's because the essence of distortion is really a linear transformation on the original image. ”

"Here is a linear algebraic matrix algorithm, and the rotation θ degree can be achieved by continuously performing the three twists in the above equation. Among them, the first twist and the third twist are both horizontal twists -θ/2 degrees ......"

After the post was posted, the follower immediately fried the pot.

"It's true, I just tried it and it definitely works. ”

"Hang, hang, oh my God. “

"It's amazing, it's amazing, the image software actually uses the line generation. ”

"There must be other uses for the thread, but we didn't find it. ”

"Worship the great god, can I help me solve this question......

The post was then crooked, and there were various calculation questions below.

Where does Brother Wolf have this interest to help with the question, it is better to brush a few more times to count the points if you have this time, this is really difficult.

The big scientist Big Big Wolf, who became famous in the online generation bar, disappeared into the sky.

Then someone looked up the previous posts of the ID, which were all nearly a year ago.

"Ask for the seeds of Mr. Cang. "If you don't charge money, how can you get to the king rank." ”

"Who has Thunderbolt temporary VIP?" "Which is easier to use, Storm Video or ****?"

Since then, the eternal legend has been left in the line bar, and the technology nerd has changed the world.