The love of functions and derivatives

Every mathematical definition has an office. Their usual job is to sort out the simulation questions of the college entrance examination questions and then hand over the materials they have sorted out to the testers after the testers come.The higher the mathematical definition of status, the more luxurious the office.The status of mathematical definitions will change slightly every year, so as soon as this year's college entrance examination mathematics papers come out, the derivatives will change offices.

Derivative's office was originally the most luxurious office in the high school mathematics world. It has all kinds of facilities such as air-conditioning and drinking fountains. When you are tired, you can look at the distant hills through the window to relax. You must know that the office with mathematical definitions such as sets and complex numbers living at the bottom of the food chain in the high school mathematics textbook world is a rough room with a table with four feet of different lengths.

Now this most luxurious office is welcoming its new owner-probability.Probability has become the most honorable man in the entire high school mathematics textbook world, and there are a large group of people who come to curry favor with him——Yuan, linear programming has a thick stack of materials in his hand, which are the materials used by probability in his daily work, basic inequalities and trigonometry. Accompanied by a large cardboard box, the two of them moved in the same direction like crabs crawling, and the probability was like a superior leader came to inspect, with their hands behind their backs, leading the three of them forward.

The derivative is packing up his brought things in the second luxury office belonging to the mathematical definition of the No.20 question.

Since the number series is still in the old position this year - No.17 question, there is no need to change offices, so he leisurely walked into the new office of the derivative with a lollipop in his mouth, leaned against the desk, and asked: " Derivative, are you going to the banquet of probability?"

Derivative sorted out a stack of materials, counted the quantity, put it in a drawer, and replied without raising his head, "What am I going to do?"

Derivative was last year's finale question, and this year it was squeezed out by probability. Sequence thought that derivative should be unhappy at this time, but he really couldn't understand the proud look of probability at this moment, so he instigated: "You If you don’t go, doesn’t it show that you are not generous enough? Others will say that it’s the first time that someone has done the finale, and you will turn your face and don’t want to go.”

Derivative wiped the dust with paper, then put a pot of Chlorophytum by the window, and replied a little strangely: "I don't know him well, and I owe him a favor for going out to eat, and I have to pay it back in the future."

"Besides, I don't care what other people think."

It is true to say so, and the reason is also the same. When I think of the fact that I have been making soy sauce on the No.17 question all these years, Sequence sighed in my heart: Hey!Will I still be the finale one day?