The love of functions and derivatives

It is obviously not a wise choice to continue this topic. Function feels that he should change the topic at this time, and when he is worrying about how to change the topic deliberately, a figure suddenly appears in his sight. Function takes a closer look, and it is actually a derivative.

Function patted Probabilities on the shoulder, and exclaimed: "Okay, bro, the high school mathematics world is famous for being a quiet and mysterious boss who likes to retreat every day, who comes and goes without a trace - no - yes The former boss—the derivative was invited by you."

"Cowhide cowhide." Function said, "It's been a long time since I've seen Derivative participate in these messy-bah-significant banquets, and he's just showing off the face of a math proposition in the college entrance examination."

"This is indeed a person with status." Function smiled and praised.

Although probability is usually not a role of soy sauce, it has no sense of existence, and function is the basis of high school mathematics. , the mood suddenly became better, and smiled through tears: "Hey hey hey hey."

And what the function said is right, derivatives usually don't participate in these banquets, but this time they actually came, the probability is from ear to ear, but he is happy, and he still has a little bit of ac in his heart, so he has to confirm it with his own eyes It took a while to believe it: "Where is where?"

"front left."

When the function probabilities turn around and look again, the derivative is no longer in the original position.

"Did you read it wrong?" Probability asked disappointedly.

"Impossible, let me look for it." Function raised his chin slightly, looking for the figure of the derivative in the crowd. Since probability and function have been chatting for a while, there are already many more guests than before.After all, the time for the guests to arrive at the banquet hall is also distributed according to the normal distribution, and it is estimated that the peak period has just passed by this time.

Function's eyes shuttled back and forth among the crowd, stopped at one place, and finally focused on probability, and said to him: "The derivative is now on your left."

At this time, the idiot temperament of probability was manifested again. He turned his head to watch like a rattle, but he still didn't see the derivative.

The function couldn't take it anymore, he hooked the probability's shoulder and made him turn his head: "Here, did you see—"

The function lifts its chin in the direction of the derivative.

There is a kind of person who always likes to lose the chain at critical moments. Even if the function has done its best to help the probability point the way, the probability on the side is still looking for it like selective blindness.

The neatly dressed waiter was holding the tray, and the wine in the glass was shaking non-stop, making people worry whether it would splash on the waiter's neckline in the next second. The waiter hurried past, the sight was finally unobstructed, and the function happened to be on Derivative sight——

Derivative has always dressed as he likes, this whole summer is black T-shirts and black trousers, yes you are not mistaken, he has a stack of the same black T-shirts and black trousers in his closet.But today, he obviously dressed up with his heart, even though he still had the evil black and white tone - white shirt and black cropped pants.The white shirt vaguely outlines his waistline, and the cropped pants show the advantage of his long legs.

The hall seemed to become quiet for an instant.The beautiful singing of "Lucky Come" from the stereo was suddenly blurred, so that the function could only feel the melody of the music, but could not hear the specific lyrics.The noisy human voice suddenly dropped below 25 decibels. At this moment, the function had only one thought——

He seemed to be... looking at himself.