The love of functions and derivatives

The sorority meeting between the high school Chinese textbook circle and the mathematics mathematics circle originally scheduled for early October was suddenly changed to the end of August, because senior high school students are likely to have only one day off for the National Day, and even the entire high school mathematics textbook circle will have to work overtime. The fraternity would be ruined.At the end of August, before school starts, everyone can have a good time together.

The night before the friendship, I was afraid that the function would be forgotten, so I sent a message to express my condolences to the function.

Probability: Handsome guy, are you there / squinting smile

The function is eating melons on Weibo at this time.

It's only been two days since I was discharged from the hospital, and Derivative has no reason to bring him meals, and the intersection between the two of them has become very rare. In addition, Derivative lied to himself before, and Derivative felt a little uncomfortable.

Upon seeing the condolences sent by the probability, the function said: This terrible and familiar feeling makes me feel even worse.

Probability: Don’t forget that you promised to pretend to be my boyfriend~

Function: I almost forgot!

The function wanted to reply to the probability immediately, but an untimely idea popped up——

I pretended to be a boyfriend with probability, what would the derivative think?

He typed a few words, wanting to reject the probability, but thinking of the strange actions of the derivative, he felt a little panicked, good guy, if he can lie to me, I can't lie to him?

Function simply and decisively replied with a good word, he admitted that he was a little bit angry at the moment, but it was only a little bit of anger, mainly because he went back on his word, the probability is so miserable, right?

The function told himself that I did this to help the probability. His fingers mechanically swipe the Weibo interface, and each time he swiped very hard, as if he was about to pierce the screen, the function gritted his teeth, so the derivative would be Coming to a sorority?

Participating in the mathematical definition of the sorority, a joint venture has set up a party hall. After arriving at the party hall, everyone will play the items they are interested in, such as playing games, playing billiards and billiards.

The function said that he just wanted to be a boy surfer, but because he agreed to the request of the probability before, he had to play stupid games with the probability as if he was forcibly bound.

"I won!" Suddenly, there was a burst of cheers in my ears, which was like a chicken crowing.

However, the probability soon became boring, because the level of the function game is too low, and life is always looking for some excitement, so that you will encounter different scenery, so the probability smiled ten teeth at the function: "Let's go find it together. Essay?"

Function: Who will follow you and us? ? ? ? ?

Function: Wait, didn't you say that before?

Thinking so, what the function said became: "Pretend to be in front of him?"

Probability laughed: "The one who knows me is also the function."

The function said that he must be obsessed with ghosts to agree to such an embarrassing request of probability. Sure enough, those who are close to vermilion are red and those who are close to ink are black, and they are careless in making friends.

At this time, the essay was chatting with a man in black. The essay was facing probability and functions, and the man in black was facing the essay. The two of them could only see his back. Thinking that the dissertation would have a target so soon, he adjusted his distorted facial features, and strode towards the dissertation with a big stride towards the function, but the back of the function felt a little familiar, and before he had time to think about it, the probability had already reached the "performance center" Position", without standing still, he said loudly to the essay: "Exposition, let me introduce you to someone!"

Function: I made another embarrassing mistake.

"My boyfriend—" Probability raised his wretched head, and said in a flamboyant and exaggerated tone, "Function."

The essay looked at the probability in surprise, then looked at the function, and finally looked at the man in black who was talking to him with a somewhat mocking and teasing look, and the man in black had already heard the words and turned around—— It is the derivative.

Derivative Zhuan narrowed his eyes and stared at the function, as if he didn't want to miss any of the function's reactions.

The heartbeat accelerated, the blood circulation accelerated, and the secretion of adrenaline increased. None of these could accurately describe how Function felt at the moment, because apart from these, he also experienced a constant pain in his chest, and Derivative's eyes seemed to have pierced his flesh. , pierced his nerve.

Function doesn't get the thrill of revenge.

He had no choice but to bite the bullet and continue playing the trick instead of dismantling the stage of probability in public: "Hello, essay, I am a function."

Function could feel that the eyes focused on him became more and more intense, so that Function suddenly had the idea of ​​running away, but finally held back.

After the function shook hands with the dissertation very politely, he extended his hand to the derivative: "Hello, derivative."

The derivative stared at the hand of the function for a long time, until the function's outstretched left hand was cold in the palm of the air at the end of summer, the derivative turned his eyes away, and then his eyes stopped on the face of the function for a second, and finally turned his head and left.